---
_id: '530'
abstract:
- lang: eng
  text: Inclusion–exclusion is an effective method for computing the volume of a union
    of measurable sets. We extend it to multiple coverings, proving short inclusion–exclusion
    formulas for the subset of Rn covered by at least k balls in a finite set. We
    implement two of the formulas in dimension n=3 and report on results obtained
    with our software.
article_processing_charge: No
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Mabel
  full_name: Iglesias Ham, Mabel
  id: 41B58C0C-F248-11E8-B48F-1D18A9856A87
  last_name: Iglesias Ham
citation:
  ama: 'Edelsbrunner H, Iglesias Ham M. Multiple covers with balls I: Inclusion–exclusion.
    <i>Computational Geometry: Theory and Applications</i>. 2018;68:119-133. doi:<a
    href="https://doi.org/10.1016/j.comgeo.2017.06.014">10.1016/j.comgeo.2017.06.014</a>'
  apa: 'Edelsbrunner, H., &#38; Iglesias Ham, M. (2018). Multiple covers with balls
    I: Inclusion–exclusion. <i>Computational Geometry: Theory and Applications</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.comgeo.2017.06.014">https://doi.org/10.1016/j.comgeo.2017.06.014</a>'
  chicago: 'Edelsbrunner, Herbert, and Mabel Iglesias Ham. “Multiple Covers with Balls
    I: Inclusion–Exclusion.” <i>Computational Geometry: Theory and Applications</i>.
    Elsevier, 2018. <a href="https://doi.org/10.1016/j.comgeo.2017.06.014">https://doi.org/10.1016/j.comgeo.2017.06.014</a>.'
  ieee: 'H. Edelsbrunner and M. Iglesias Ham, “Multiple covers with balls I: Inclusion–exclusion,”
    <i>Computational Geometry: Theory and Applications</i>, vol. 68. Elsevier, pp.
    119–133, 2018.'
  ista: 'Edelsbrunner H, Iglesias Ham M. 2018. Multiple covers with balls I: Inclusion–exclusion.
    Computational Geometry: Theory and Applications. 68, 119–133.'
  mla: 'Edelsbrunner, Herbert, and Mabel Iglesias Ham. “Multiple Covers with Balls
    I: Inclusion–Exclusion.” <i>Computational Geometry: Theory and Applications</i>,
    vol. 68, Elsevier, 2018, pp. 119–33, doi:<a href="https://doi.org/10.1016/j.comgeo.2017.06.014">10.1016/j.comgeo.2017.06.014</a>.'
  short: 'H. Edelsbrunner, M. Iglesias Ham, Computational Geometry: Theory and Applications
    68 (2018) 119–133.'
date_created: 2018-12-11T11:46:59Z
date_published: 2018-03-01T00:00:00Z
date_updated: 2023-09-13T08:59:00Z
day: '01'
ddc:
- '000'
department:
- _id: HeEd
doi: 10.1016/j.comgeo.2017.06.014
ec_funded: 1
external_id:
  isi:
  - '000415778300010'
file:
- access_level: open_access
  checksum: 1c8d58cd489a66cd3e2064c1141c8c5e
  content_type: application/pdf
  creator: dernst
  date_created: 2019-02-12T06:47:52Z
  date_updated: 2020-07-14T12:46:38Z
  file_id: '5953'
  file_name: 2018_Edelsbrunner.pdf
  file_size: 708357
  relation: main_file
file_date_updated: 2020-07-14T12:46:38Z
has_accepted_license: '1'
intvolume: '        68'
isi: 1
language:
- iso: eng
month: '03'
oa: 1
oa_version: Preprint
page: 119 - 133
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: 'Computational Geometry: Theory and Applications'
publication_status: published
publisher: Elsevier
publist_id: '7289'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Multiple covers with balls I: Inclusion–exclusion'
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 68
year: '2018'
...
---
_id: '1072'
abstract:
- lang: eng
  text: Given a finite set of points in Rn and a radius parameter, we study the Čech,
    Delaunay–Čech, Delaunay (or alpha), and Wrap complexes in the light of generalized
    discrete Morse theory. Establishing the Čech and Delaunay complexes as sublevel
    sets of generalized discrete Morse functions, we prove that the four complexes
    are simple-homotopy equivalent by a sequence of simplicial collapses, which are
    explicitly described by a single discrete gradient field.
acknowledgement: This research has been supported by the EU project Toposys(FP7-ICT-318493-STREP),
  by ESF under the ACAT Research Network Programme, by the Russian Government under
  mega project 11.G34.31.0053, and by the DFG Collaborative Research Center SFB/TRR
  109 “Discretization in Geometry and Dynamics”.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Ulrich
  full_name: Bauer, Ulrich
  id: 2ADD483A-F248-11E8-B48F-1D18A9856A87
  last_name: Bauer
  orcid: 0000-0002-9683-0724
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
citation:
  ama: Bauer U, Edelsbrunner H. The Morse theory of Čech and delaunay complexes. <i>Transactions
    of the American Mathematical Society</i>. 2017;369(5):3741-3762. doi:<a href="https://doi.org/10.1090/tran/6991">10.1090/tran/6991</a>
  apa: Bauer, U., &#38; Edelsbrunner, H. (2017). The Morse theory of Čech and delaunay
    complexes. <i>Transactions of the American Mathematical Society</i>. American
    Mathematical Society. <a href="https://doi.org/10.1090/tran/6991">https://doi.org/10.1090/tran/6991</a>
  chicago: Bauer, Ulrich, and Herbert Edelsbrunner. “The Morse Theory of Čech and
    Delaunay Complexes.” <i>Transactions of the American Mathematical Society</i>.
    American Mathematical Society, 2017. <a href="https://doi.org/10.1090/tran/6991">https://doi.org/10.1090/tran/6991</a>.
  ieee: U. Bauer and H. Edelsbrunner, “The Morse theory of Čech and delaunay complexes,”
    <i>Transactions of the American Mathematical Society</i>, vol. 369, no. 5. American
    Mathematical Society, pp. 3741–3762, 2017.
  ista: Bauer U, Edelsbrunner H. 2017. The Morse theory of Čech and delaunay complexes.
    Transactions of the American Mathematical Society. 369(5), 3741–3762.
  mla: Bauer, Ulrich, and Herbert Edelsbrunner. “The Morse Theory of Čech and Delaunay
    Complexes.” <i>Transactions of the American Mathematical Society</i>, vol. 369,
    no. 5, American Mathematical Society, 2017, pp. 3741–62, doi:<a href="https://doi.org/10.1090/tran/6991">10.1090/tran/6991</a>.
  short: U. Bauer, H. Edelsbrunner, Transactions of the American Mathematical Society
    369 (2017) 3741–3762.
date_created: 2018-12-11T11:49:59Z
date_published: 2017-05-01T00:00:00Z
date_updated: 2023-09-20T12:05:56Z
day: '01'
department:
- _id: HeEd
doi: 10.1090/tran/6991
ec_funded: 1
external_id:
  arxiv:
  - '1312.1231'
  isi:
  - '000398030400024'
intvolume: '       369'
isi: 1
issue: '5'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1312.1231
month: '05'
oa: 1
oa_version: Preprint
page: 3741 - 3762
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Transactions of the American Mathematical Society
publication_status: published
publisher: American Mathematical Society
publist_id: '6311'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The Morse theory of Čech and delaunay complexes
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 369
year: '2017'
...
---
_id: '1173'
abstract:
- lang: eng
  text: We introduce the Voronoi functional of a triangulation of a finite set of
    points in the Euclidean plane and prove that among all geometric triangulations
    of the point set, the Delaunay triangulation maximizes the functional. This result
    neither extends to topological triangulations in the plane nor to geometric triangulations
    in three and higher dimensions.
acknowledgement: This research is partially supported by the Russian Government under
  the Mega Project 11.G34.31.0053, by the Toposys project FP7-ICT-318493-STREP, by
  ESF under the ACAT Research Network Programme, by RFBR grant 11-01-00735, and by
  NSF grants DMS-1101688, DMS-1400876.
article_processing_charge: No
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Alexey
  full_name: Glazyrin, Alexey
  last_name: Glazyrin
- first_name: Oleg
  full_name: Musin, Oleg
  last_name: Musin
- first_name: Anton
  full_name: Nikitenko, Anton
  id: 3E4FF1BA-F248-11E8-B48F-1D18A9856A87
  last_name: Nikitenko
  orcid: 0000-0002-0659-3201
citation:
  ama: Edelsbrunner H, Glazyrin A, Musin O, Nikitenko A. The Voronoi functional is
    maximized by the Delaunay triangulation in the plane. <i>Combinatorica</i>. 2017;37(5):887-910.
    doi:<a href="https://doi.org/10.1007/s00493-016-3308-y">10.1007/s00493-016-3308-y</a>
  apa: Edelsbrunner, H., Glazyrin, A., Musin, O., &#38; Nikitenko, A. (2017). The
    Voronoi functional is maximized by the Delaunay triangulation in the plane. <i>Combinatorica</i>.
    Springer. <a href="https://doi.org/10.1007/s00493-016-3308-y">https://doi.org/10.1007/s00493-016-3308-y</a>
  chicago: Edelsbrunner, Herbert, Alexey Glazyrin, Oleg Musin, and Anton Nikitenko.
    “The Voronoi Functional Is Maximized by the Delaunay Triangulation in the Plane.”
    <i>Combinatorica</i>. Springer, 2017. <a href="https://doi.org/10.1007/s00493-016-3308-y">https://doi.org/10.1007/s00493-016-3308-y</a>.
  ieee: H. Edelsbrunner, A. Glazyrin, O. Musin, and A. Nikitenko, “The Voronoi functional
    is maximized by the Delaunay triangulation in the plane,” <i>Combinatorica</i>,
    vol. 37, no. 5. Springer, pp. 887–910, 2017.
  ista: Edelsbrunner H, Glazyrin A, Musin O, Nikitenko A. 2017. The Voronoi functional
    is maximized by the Delaunay triangulation in the plane. Combinatorica. 37(5),
    887–910.
  mla: Edelsbrunner, Herbert, et al. “The Voronoi Functional Is Maximized by the Delaunay
    Triangulation in the Plane.” <i>Combinatorica</i>, vol. 37, no. 5, Springer, 2017,
    pp. 887–910, doi:<a href="https://doi.org/10.1007/s00493-016-3308-y">10.1007/s00493-016-3308-y</a>.
  short: H. Edelsbrunner, A. Glazyrin, O. Musin, A. Nikitenko, Combinatorica 37 (2017)
    887–910.
date_created: 2018-12-11T11:50:32Z
date_published: 2017-10-01T00:00:00Z
date_updated: 2023-09-20T11:23:53Z
day: '01'
department:
- _id: HeEd
doi: 10.1007/s00493-016-3308-y
ec_funded: 1
external_id:
  isi:
  - '000418056000005'
intvolume: '        37'
isi: 1
issue: '5'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1411.6337
month: '10'
oa: 1
oa_version: Submitted Version
page: 887 - 910
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Combinatorica
publication_identifier:
  issn:
  - '02099683'
publication_status: published
publisher: Springer
publist_id: '6182'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The Voronoi functional is maximized by the Delaunay triangulation in the plane
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 37
year: '2017'
...
---
_id: '836'
abstract:
- lang: eng
  text: Recent research has examined how to study the topological features of a continuous
    self-map by means of the persistence of the eigenspaces, for given eigenvalues,
    of the endomorphism induced in homology over a field. This raised the question
    of how to select dynamically significant eigenvalues. The present paper aims to
    answer this question, giving an algorithm that computes the persistence of eigenspaces
    for every eigenvalue simultaneously, also expressing said eigenspaces as direct
    sums of “finite” and “singular” subspaces.
alternative_title:
- PROMS
article_processing_charge: No
author:
- first_name: Marc
  full_name: Ethier, Marc
  last_name: Ethier
- first_name: Grzegorz
  full_name: Jablonski, Grzegorz
  id: 4483EF78-F248-11E8-B48F-1D18A9856A87
  last_name: Jablonski
  orcid: 0000-0002-3536-9866
- first_name: Marian
  full_name: Mrozek, Marian
  last_name: Mrozek
citation:
  ama: 'Ethier M, Jablonski G, Mrozek M. Finding eigenvalues of self-maps with the
    Kronecker canonical form. In: <i>Special Sessions in Applications of Computer
    Algebra</i>. Vol 198. Springer; 2017:119-136. doi:<a href="https://doi.org/10.1007/978-3-319-56932-1_8">10.1007/978-3-319-56932-1_8</a>'
  apa: 'Ethier, M., Jablonski, G., &#38; Mrozek, M. (2017). Finding eigenvalues of
    self-maps with the Kronecker canonical form. In <i>Special Sessions in Applications
    of Computer Algebra</i> (Vol. 198, pp. 119–136). Kalamata, Greece: Springer. <a
    href="https://doi.org/10.1007/978-3-319-56932-1_8">https://doi.org/10.1007/978-3-319-56932-1_8</a>'
  chicago: Ethier, Marc, Grzegorz Jablonski, and Marian Mrozek. “Finding Eigenvalues
    of Self-Maps with the Kronecker Canonical Form.” In <i>Special Sessions in Applications
    of Computer Algebra</i>, 198:119–36. Springer, 2017. <a href="https://doi.org/10.1007/978-3-319-56932-1_8">https://doi.org/10.1007/978-3-319-56932-1_8</a>.
  ieee: M. Ethier, G. Jablonski, and M. Mrozek, “Finding eigenvalues of self-maps
    with the Kronecker canonical form,” in <i>Special Sessions in Applications of
    Computer Algebra</i>, Kalamata, Greece, 2017, vol. 198, pp. 119–136.
  ista: 'Ethier M, Jablonski G, Mrozek M. 2017. Finding eigenvalues of self-maps with
    the Kronecker canonical form. Special Sessions in Applications of Computer Algebra.
    ACA: Applications of Computer Algebra, PROMS, vol. 198, 119–136.'
  mla: Ethier, Marc, et al. “Finding Eigenvalues of Self-Maps with the Kronecker Canonical
    Form.” <i>Special Sessions in Applications of Computer Algebra</i>, vol. 198,
    Springer, 2017, pp. 119–36, doi:<a href="https://doi.org/10.1007/978-3-319-56932-1_8">10.1007/978-3-319-56932-1_8</a>.
  short: M. Ethier, G. Jablonski, M. Mrozek, in:, Special Sessions in Applications
    of Computer Algebra, Springer, 2017, pp. 119–136.
conference:
  end_date: 2015-07-23
  location: Kalamata, Greece
  name: 'ACA: Applications of Computer Algebra'
  start_date: 2015-07-20
date_created: 2018-12-11T11:48:46Z
date_published: 2017-07-27T00:00:00Z
date_updated: 2023-09-26T15:50:52Z
day: '27'
department:
- _id: HeEd
doi: 10.1007/978-3-319-56932-1_8
ec_funded: 1
external_id:
  isi:
  - '000434088200008'
intvolume: '       198'
isi: 1
language:
- iso: eng
month: '07'
oa_version: None
page: 119 - 136
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Special Sessions in Applications of Computer Algebra
publication_identifier:
  isbn:
  - 978-331956930-7
publication_status: published
publisher: Springer
publist_id: '6812'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Finding eigenvalues of self-maps with the Kronecker canonical form
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 198
year: '2017'
...
---
_id: '718'
abstract:
- lang: eng
  text: Mapping every simplex in the Delaunay mosaic of a discrete point set to the
    radius of the smallest empty circumsphere gives a generalized discrete Morse function.
    Choosing the points from a Poisson point process in ℝ n , we study the expected
    number of simplices in the Delaunay mosaic as well as the expected number of critical
    simplices and nonsingular intervals in the corresponding generalized discrete
    gradient. Observing connections with other probabilistic models, we obtain precise
    expressions for the expected numbers in low dimensions. In particular, we obtain
    the expected numbers of simplices in the Poisson–Delaunay mosaic in dimensions
    n ≤ 4.
arxiv: 1
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Anton
  full_name: Nikitenko, Anton
  id: 3E4FF1BA-F248-11E8-B48F-1D18A9856A87
  last_name: Nikitenko
  orcid: 0000-0002-0659-3201
- first_name: Matthias
  full_name: Reitzner, Matthias
  last_name: Reitzner
citation:
  ama: Edelsbrunner H, Nikitenko A, Reitzner M. Expected sizes of poisson Delaunay
    mosaics and their discrete Morse functions. <i>Advances in Applied Probability</i>.
    2017;49(3):745-767. doi:<a href="https://doi.org/10.1017/apr.2017.20">10.1017/apr.2017.20</a>
  apa: Edelsbrunner, H., Nikitenko, A., &#38; Reitzner, M. (2017). Expected sizes
    of poisson Delaunay mosaics and their discrete Morse functions. <i>Advances in
    Applied Probability</i>. Cambridge University Press. <a href="https://doi.org/10.1017/apr.2017.20">https://doi.org/10.1017/apr.2017.20</a>
  chicago: Edelsbrunner, Herbert, Anton Nikitenko, and Matthias Reitzner. “Expected
    Sizes of Poisson Delaunay Mosaics and Their Discrete Morse Functions.” <i>Advances
    in Applied Probability</i>. Cambridge University Press, 2017. <a href="https://doi.org/10.1017/apr.2017.20">https://doi.org/10.1017/apr.2017.20</a>.
  ieee: H. Edelsbrunner, A. Nikitenko, and M. Reitzner, “Expected sizes of poisson
    Delaunay mosaics and their discrete Morse functions,” <i>Advances in Applied Probability</i>,
    vol. 49, no. 3. Cambridge University Press, pp. 745–767, 2017.
  ista: Edelsbrunner H, Nikitenko A, Reitzner M. 2017. Expected sizes of poisson Delaunay
    mosaics and their discrete Morse functions. Advances in Applied Probability. 49(3),
    745–767.
  mla: Edelsbrunner, Herbert, et al. “Expected Sizes of Poisson Delaunay Mosaics and
    Their Discrete Morse Functions.” <i>Advances in Applied Probability</i>, vol.
    49, no. 3, Cambridge University Press, 2017, pp. 745–67, doi:<a href="https://doi.org/10.1017/apr.2017.20">10.1017/apr.2017.20</a>.
  short: H. Edelsbrunner, A. Nikitenko, M. Reitzner, Advances in Applied Probability
    49 (2017) 745–767.
date_created: 2018-12-11T11:48:07Z
date_published: 2017-09-01T00:00:00Z
date_updated: 2023-09-07T12:07:12Z
day: '01'
department:
- _id: HeEd
doi: 10.1017/apr.2017.20
ec_funded: 1
external_id:
  arxiv:
  - '1607.05915'
intvolume: '        49'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1607.05915
month: '09'
oa: 1
oa_version: Preprint
page: 745 - 767
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
- _id: 2561EBF4-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I02979-N35
  name: Persistence and stability of geometric complexes
publication: Advances in Applied Probability
publication_identifier:
  issn:
  - '00018678'
publication_status: published
publisher: Cambridge University Press
publist_id: '6962'
quality_controlled: '1'
related_material:
  record:
  - id: '6287'
    relation: dissertation_contains
    status: public
scopus_import: 1
status: public
title: Expected sizes of poisson Delaunay mosaics and their discrete Morse functions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 49
year: '2017'
...
---
_id: '1433'
abstract:
- lang: eng
  text: Phat is an open-source C. ++ library for the computation of persistent homology
    by matrix reduction, targeted towards developers of software for topological data
    analysis. We aim for a simple generic design that decouples algorithms from data
    structures without sacrificing efficiency or user-friendliness. We provide numerous
    different reduction strategies as well as data types to store and manipulate the
    boundary matrix. We compare the different combinations through extensive experimental
    evaluation and identify optimization techniques that work well in practical situations.
    We also compare our software with various other publicly available libraries for
    persistent homology.
article_processing_charge: No
article_type: original
author:
- first_name: Ulrich
  full_name: Bauer, Ulrich
  last_name: Bauer
- first_name: Michael
  full_name: Kerber, Michael
  last_name: Kerber
- first_name: Jan
  full_name: Reininghaus, Jan
  last_name: Reininghaus
- first_name: Hubert
  full_name: Wagner, Hubert
  id: 379CA8B8-F248-11E8-B48F-1D18A9856A87
  last_name: Wagner
citation:
  ama: Bauer U, Kerber M, Reininghaus J, Wagner H. Phat - Persistent homology algorithms
    toolbox. <i>Journal of Symbolic Computation</i>. 2017;78:76-90. doi:<a href="https://doi.org/10.1016/j.jsc.2016.03.008">10.1016/j.jsc.2016.03.008</a>
  apa: Bauer, U., Kerber, M., Reininghaus, J., &#38; Wagner, H. (2017). Phat - Persistent
    homology algorithms toolbox. <i>Journal of Symbolic Computation</i>. Academic
    Press. <a href="https://doi.org/10.1016/j.jsc.2016.03.008">https://doi.org/10.1016/j.jsc.2016.03.008</a>
  chicago: Bauer, Ulrich, Michael Kerber, Jan Reininghaus, and Hubert Wagner. “Phat
    - Persistent Homology Algorithms Toolbox.” <i>Journal of Symbolic Computation</i>.
    Academic Press, 2017. <a href="https://doi.org/10.1016/j.jsc.2016.03.008">https://doi.org/10.1016/j.jsc.2016.03.008</a>.
  ieee: U. Bauer, M. Kerber, J. Reininghaus, and H. Wagner, “Phat - Persistent homology
    algorithms toolbox,” <i>Journal of Symbolic Computation</i>, vol. 78. Academic
    Press, pp. 76–90, 2017.
  ista: Bauer U, Kerber M, Reininghaus J, Wagner H. 2017. Phat - Persistent homology
    algorithms toolbox. Journal of Symbolic Computation. 78, 76–90.
  mla: Bauer, Ulrich, et al. “Phat - Persistent Homology Algorithms Toolbox.” <i>Journal
    of Symbolic Computation</i>, vol. 78, Academic Press, 2017, pp. 76–90, doi:<a
    href="https://doi.org/10.1016/j.jsc.2016.03.008">10.1016/j.jsc.2016.03.008</a>.
  short: U. Bauer, M. Kerber, J. Reininghaus, H. Wagner, Journal of Symbolic Computation
    78 (2017) 76–90.
date_created: 2018-12-11T11:51:59Z
date_published: 2017-01-01T00:00:00Z
date_updated: 2023-09-20T09:42:40Z
day: '01'
department:
- _id: HeEd
doi: 10.1016/j.jsc.2016.03.008
ec_funded: 1
external_id:
  isi:
  - '000384396000005'
intvolume: '        78'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1016/j.jsc.2016.03.008
month: '01'
oa: 1
oa_version: Published Version
page: 76 - 90
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Journal of Symbolic Computation
publication_identifier:
  issn:
  - ' 07477171'
publication_status: published
publisher: Academic Press
publist_id: '5765'
quality_controlled: '1'
related_material:
  record:
  - id: '10894'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: Phat - Persistent homology algorithms toolbox
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 78
year: '2017'
...
---
_id: '1662'
abstract:
- lang: eng
  text: We introduce a modification of the classic notion of intrinsic volume using
    persistence moments of height functions. Evaluating the modified first intrinsic
    volume on digital approximations of a compact body with smoothly embedded boundary
    in Rn, we prove convergence to the first intrinsic volume of the body as the resolution
    of the approximation improves. We have weaker results for the other modified intrinsic
    volumes, proving they converge to the corresponding intrinsic volumes of the n-dimensional
    unit ball.
acknowledgement: "This research is partially supported by the Toposys project FP7-ICT-318493-STREP,
  and by ESF under the ACAT Research Network Programme.\r\nBoth authors thank Anne
  Marie Svane for her comments on an early version of this paper. The second author
  wishes to thank Eva B. Vedel Jensen and Markus Kiderlen from Aarhus University for
  enlightening discussions and their kind hospitality during a visit of their department
  in 2014."
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Florian
  full_name: Pausinger, Florian
  id: 2A77D7A2-F248-11E8-B48F-1D18A9856A87
  last_name: Pausinger
  orcid: 0000-0002-8379-3768
citation:
  ama: Edelsbrunner H, Pausinger F. Approximation and convergence of the intrinsic
    volume. <i>Advances in Mathematics</i>. 2016;287:674-703. doi:<a href="https://doi.org/10.1016/j.aim.2015.10.004">10.1016/j.aim.2015.10.004</a>
  apa: Edelsbrunner, H., &#38; Pausinger, F. (2016). Approximation and convergence
    of the intrinsic volume. <i>Advances in Mathematics</i>. Academic Press. <a href="https://doi.org/10.1016/j.aim.2015.10.004">https://doi.org/10.1016/j.aim.2015.10.004</a>
  chicago: Edelsbrunner, Herbert, and Florian Pausinger. “Approximation and Convergence
    of the Intrinsic Volume.” <i>Advances in Mathematics</i>. Academic Press, 2016.
    <a href="https://doi.org/10.1016/j.aim.2015.10.004">https://doi.org/10.1016/j.aim.2015.10.004</a>.
  ieee: H. Edelsbrunner and F. Pausinger, “Approximation and convergence of the intrinsic
    volume,” <i>Advances in Mathematics</i>, vol. 287. Academic Press, pp. 674–703,
    2016.
  ista: Edelsbrunner H, Pausinger F. 2016. Approximation and convergence of the intrinsic
    volume. Advances in Mathematics. 287, 674–703.
  mla: Edelsbrunner, Herbert, and Florian Pausinger. “Approximation and Convergence
    of the Intrinsic Volume.” <i>Advances in Mathematics</i>, vol. 287, Academic Press,
    2016, pp. 674–703, doi:<a href="https://doi.org/10.1016/j.aim.2015.10.004">10.1016/j.aim.2015.10.004</a>.
  short: H. Edelsbrunner, F. Pausinger, Advances in Mathematics 287 (2016) 674–703.
date_created: 2018-12-11T11:53:20Z
date_published: 2016-01-10T00:00:00Z
date_updated: 2023-09-07T11:41:25Z
day: '10'
ddc:
- '004'
department:
- _id: HeEd
doi: 10.1016/j.aim.2015.10.004
ec_funded: 1
file:
- access_level: open_access
  checksum: f8869ec110c35c852ef6a37425374af7
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:12:10Z
  date_updated: 2020-07-14T12:45:10Z
  file_id: '4928'
  file_name: IST-2017-774-v1+1_2016-J-03-FirstIntVolume.pdf
  file_size: 248985
  relation: main_file
file_date_updated: 2020-07-14T12:45:10Z
has_accepted_license: '1'
intvolume: '       287'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 674 - 703
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Advances in Mathematics
publication_status: published
publisher: Academic Press
publist_id: '5488'
pubrep_id: '774'
quality_controlled: '1'
related_material:
  record:
  - id: '1399'
    relation: dissertation_contains
    status: public
scopus_import: 1
status: public
title: Approximation and convergence of the intrinsic volume
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 287
year: '2016'
...
---
_id: '1295'
abstract:
- lang: eng
  text: Voronoi diagrams and Delaunay triangulations have been extensively used to
    represent and compute geometric features of point configurations. We introduce
    a generalization to poset diagrams and poset complexes, which contain order-k
    and degree-k Voronoi diagrams and their duals as special cases. Extending a result
    of Aurenhammer from 1990, we show how to construct poset diagrams as weighted
    Voronoi diagrams of average balls.
acknowledgement: This work is partially supported by the Toposys project FP7-ICT-318493-STREP,
  and by ESF under the ACAT Research Network Programme.
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Mabel
  full_name: Iglesias Ham, Mabel
  id: 41B58C0C-F248-11E8-B48F-1D18A9856A87
  last_name: Iglesias Ham
citation:
  ama: 'Edelsbrunner H, Iglesias Ham M. Multiple covers with balls II: Weighted averages.
    <i>Electronic Notes in Discrete Mathematics</i>. 2016;54:169-174. doi:<a href="https://doi.org/10.1016/j.endm.2016.09.030">10.1016/j.endm.2016.09.030</a>'
  apa: 'Edelsbrunner, H., &#38; Iglesias Ham, M. (2016). Multiple covers with balls
    II: Weighted averages. <i>Electronic Notes in Discrete Mathematics</i>. Elsevier.
    <a href="https://doi.org/10.1016/j.endm.2016.09.030">https://doi.org/10.1016/j.endm.2016.09.030</a>'
  chicago: 'Edelsbrunner, Herbert, and Mabel Iglesias Ham. “Multiple Covers with Balls
    II: Weighted Averages.” <i>Electronic Notes in Discrete Mathematics</i>. Elsevier,
    2016. <a href="https://doi.org/10.1016/j.endm.2016.09.030">https://doi.org/10.1016/j.endm.2016.09.030</a>.'
  ieee: 'H. Edelsbrunner and M. Iglesias Ham, “Multiple covers with balls II: Weighted
    averages,” <i>Electronic Notes in Discrete Mathematics</i>, vol. 54. Elsevier,
    pp. 169–174, 2016.'
  ista: 'Edelsbrunner H, Iglesias Ham M. 2016. Multiple covers with balls II: Weighted
    averages. Electronic Notes in Discrete Mathematics. 54, 169–174.'
  mla: 'Edelsbrunner, Herbert, and Mabel Iglesias Ham. “Multiple Covers with Balls
    II: Weighted Averages.” <i>Electronic Notes in Discrete Mathematics</i>, vol.
    54, Elsevier, 2016, pp. 169–74, doi:<a href="https://doi.org/10.1016/j.endm.2016.09.030">10.1016/j.endm.2016.09.030</a>.'
  short: H. Edelsbrunner, M. Iglesias Ham, Electronic Notes in Discrete Mathematics
    54 (2016) 169–174.
date_created: 2018-12-11T11:51:12Z
date_published: 2016-10-01T00:00:00Z
date_updated: 2021-01-12T06:49:41Z
day: '01'
department:
- _id: HeEd
doi: 10.1016/j.endm.2016.09.030
ec_funded: 1
intvolume: '        54'
language:
- iso: eng
month: '10'
oa_version: None
page: 169 - 174
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Electronic Notes in Discrete Mathematics
publication_status: published
publisher: Elsevier
publist_id: '5976'
quality_controlled: '1'
scopus_import: 1
status: public
title: 'Multiple covers with balls II: Weighted averages'
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 54
year: '2016'
...
---
_id: '1805'
abstract:
- lang: eng
  text: 'We consider the problem of deciding whether the persistent homology group
    of a simplicial pair (K,L) can be realized as the homology H∗(X) of some complex
    X with L ⊂ X ⊂ K. We show that this problem is NP-complete even if K is embedded
    in double-struck R3. As a consequence, we show that it is NP-hard to simplify
    level and sublevel sets of scalar functions on double-struck S3 within a given
    tolerance constraint. This problem has relevance to the visualization of medical
    images by isosurfaces. We also show an implication to the theory of well groups
    of scalar functions: not every well group can be realized by some level set, and
    deciding whether a well group can be realized is NP-hard.'
author:
- first_name: Dominique
  full_name: Attali, Dominique
  last_name: Attali
- first_name: Ulrich
  full_name: Bauer, Ulrich
  id: 2ADD483A-F248-11E8-B48F-1D18A9856A87
  last_name: Bauer
  orcid: 0000-0002-9683-0724
- first_name: Olivier
  full_name: Devillers, Olivier
  last_name: Devillers
- first_name: Marc
  full_name: Glisse, Marc
  last_name: Glisse
- first_name: André
  full_name: Lieutier, André
  last_name: Lieutier
citation:
  ama: 'Attali D, Bauer U, Devillers O, Glisse M, Lieutier A. Homological reconstruction
    and simplification in R3. <i>Computational Geometry: Theory and Applications</i>.
    2015;48(8):606-621. doi:<a href="https://doi.org/10.1016/j.comgeo.2014.08.010">10.1016/j.comgeo.2014.08.010</a>'
  apa: 'Attali, D., Bauer, U., Devillers, O., Glisse, M., &#38; Lieutier, A. (2015).
    Homological reconstruction and simplification in R3. <i>Computational Geometry:
    Theory and Applications</i>. Elsevier. <a href="https://doi.org/10.1016/j.comgeo.2014.08.010">https://doi.org/10.1016/j.comgeo.2014.08.010</a>'
  chicago: 'Attali, Dominique, Ulrich Bauer, Olivier Devillers, Marc Glisse, and André
    Lieutier. “Homological Reconstruction and Simplification in R3.” <i>Computational
    Geometry: Theory and Applications</i>. Elsevier, 2015. <a href="https://doi.org/10.1016/j.comgeo.2014.08.010">https://doi.org/10.1016/j.comgeo.2014.08.010</a>.'
  ieee: 'D. Attali, U. Bauer, O. Devillers, M. Glisse, and A. Lieutier, “Homological
    reconstruction and simplification in R3,” <i>Computational Geometry: Theory and
    Applications</i>, vol. 48, no. 8. Elsevier, pp. 606–621, 2015.'
  ista: 'Attali D, Bauer U, Devillers O, Glisse M, Lieutier A. 2015. Homological reconstruction
    and simplification in R3. Computational Geometry: Theory and Applications. 48(8),
    606–621.'
  mla: 'Attali, Dominique, et al. “Homological Reconstruction and Simplification in
    R3.” <i>Computational Geometry: Theory and Applications</i>, vol. 48, no. 8, Elsevier,
    2015, pp. 606–21, doi:<a href="https://doi.org/10.1016/j.comgeo.2014.08.010">10.1016/j.comgeo.2014.08.010</a>.'
  short: 'D. Attali, U. Bauer, O. Devillers, M. Glisse, A. Lieutier, Computational
    Geometry: Theory and Applications 48 (2015) 606–621.'
date_created: 2018-12-11T11:54:06Z
date_published: 2015-06-03T00:00:00Z
date_updated: 2023-02-23T10:59:19Z
day: '03'
department:
- _id: HeEd
doi: 10.1016/j.comgeo.2014.08.010
ec_funded: 1
intvolume: '        48'
issue: '8'
language:
- iso: eng
month: '06'
oa_version: None
page: 606 - 621
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: 'Computational Geometry: Theory and Applications'
publication_status: published
publisher: Elsevier
publist_id: '5305'
quality_controlled: '1'
related_material:
  record:
  - id: '2812'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: Homological reconstruction and simplification in R3
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 48
year: '2015'
...
---
_id: '2035'
abstract:
- lang: eng
  text: "Considering a continuous self-map and the induced endomorphism on homology,
    we study the eigenvalues and eigenspaces of the latter. Taking a filtration of
    representations, we define the persistence of the eigenspaces, effectively introducing
    a hierarchical organization of the map. The algorithm that computes this information
    for a finite sample is proved to be stable, and to give the correct answer for
    a sufficiently dense sample. Results computed with an implementation of the algorithm
    provide evidence of its practical utility.\r\n"
acknowledgement: This research is partially supported by the Toposys project FP7-ICT-318493-STREP,
  by ESF under the ACAT Research Network Programme, by the Russian Government under
  mega project 11.G34.31.0053, and by the Polish National Science Center under Grant
  No. N201 419639.
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Grzegorz
  full_name: Jablonski, Grzegorz
  id: 4483EF78-F248-11E8-B48F-1D18A9856A87
  last_name: Jablonski
  orcid: 0000-0002-3536-9866
- first_name: Marian
  full_name: Mrozek, Marian
  last_name: Mrozek
citation:
  ama: Edelsbrunner H, Jablonski G, Mrozek M. The persistent homology of a self-map.
    <i>Foundations of Computational Mathematics</i>. 2015;15(5):1213-1244. doi:<a
    href="https://doi.org/10.1007/s10208-014-9223-y">10.1007/s10208-014-9223-y</a>
  apa: Edelsbrunner, H., Jablonski, G., &#38; Mrozek, M. (2015). The persistent homology
    of a self-map. <i>Foundations of Computational Mathematics</i>. Springer. <a href="https://doi.org/10.1007/s10208-014-9223-y">https://doi.org/10.1007/s10208-014-9223-y</a>
  chicago: Edelsbrunner, Herbert, Grzegorz Jablonski, and Marian Mrozek. “The Persistent
    Homology of a Self-Map.” <i>Foundations of Computational Mathematics</i>. Springer,
    2015. <a href="https://doi.org/10.1007/s10208-014-9223-y">https://doi.org/10.1007/s10208-014-9223-y</a>.
  ieee: H. Edelsbrunner, G. Jablonski, and M. Mrozek, “The persistent homology of
    a self-map,” <i>Foundations of Computational Mathematics</i>, vol. 15, no. 5.
    Springer, pp. 1213–1244, 2015.
  ista: Edelsbrunner H, Jablonski G, Mrozek M. 2015. The persistent homology of a
    self-map. Foundations of Computational Mathematics. 15(5), 1213–1244.
  mla: Edelsbrunner, Herbert, et al. “The Persistent Homology of a Self-Map.” <i>Foundations
    of Computational Mathematics</i>, vol. 15, no. 5, Springer, 2015, pp. 1213–44,
    doi:<a href="https://doi.org/10.1007/s10208-014-9223-y">10.1007/s10208-014-9223-y</a>.
  short: H. Edelsbrunner, G. Jablonski, M. Mrozek, Foundations of Computational Mathematics
    15 (2015) 1213–1244.
date_created: 2018-12-11T11:55:20Z
date_published: 2015-10-01T00:00:00Z
date_updated: 2021-01-12T06:54:53Z
day: '01'
ddc:
- '000'
department:
- _id: HeEd
doi: 10.1007/s10208-014-9223-y
ec_funded: 1
file:
- access_level: open_access
  checksum: 3566f3a8b0c1bc550e62914a88c584ff
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:08:10Z
  date_updated: 2020-07-14T12:45:26Z
  file_id: '4670'
  file_name: IST-2016-486-v1+1_s10208-014-9223-y.pdf
  file_size: 1317546
  relation: main_file
file_date_updated: 2020-07-14T12:45:26Z
has_accepted_license: '1'
intvolume: '        15'
issue: '5'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: 1213 - 1244
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Foundations of Computational Mathematics
publication_status: published
publisher: Springer
publist_id: '5022'
pubrep_id: '486'
quality_controlled: '1'
scopus_import: 1
status: public
title: The persistent homology of a self-map
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2015'
...
---
_id: '1495'
abstract:
- lang: eng
  text: 'Motivated by biological questions, we study configurations of equal-sized
    disks in the Euclidean plane that neither pack nor cover. Measuring the quality
    by the probability that a random point lies in exactly one disk, we show that
    the regular hexagonal grid gives the maximum among lattice configurations. '
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Mabel
  full_name: Iglesias Ham, Mabel
  id: 41B58C0C-F248-11E8-B48F-1D18A9856A87
  last_name: Iglesias Ham
- first_name: Vitaliy
  full_name: Kurlin, Vitaliy
  last_name: Kurlin
citation:
  ama: 'Edelsbrunner H, Iglesias Ham M, Kurlin V. Relaxed disk packing. In: <i>Proceedings
    of the 27th Canadian Conference on Computational Geometry</i>. Vol 2015-August.
    Queen’s University; 2015:128-135.'
  apa: 'Edelsbrunner, H., Iglesias Ham, M., &#38; Kurlin, V. (2015). Relaxed disk
    packing. In <i>Proceedings of the 27th Canadian Conference on Computational Geometry</i>
    (Vol. 2015–August, pp. 128–135). Ontario, Canada: Queen’s University.'
  chicago: Edelsbrunner, Herbert, Mabel Iglesias Ham, and Vitaliy Kurlin. “Relaxed
    Disk Packing.” In <i>Proceedings of the 27th Canadian Conference on Computational
    Geometry</i>, 2015–August:128–35. Queen’s University, 2015.
  ieee: H. Edelsbrunner, M. Iglesias Ham, and V. Kurlin, “Relaxed disk packing,” in
    <i>Proceedings of the 27th Canadian Conference on Computational Geometry</i>,
    Ontario, Canada, 2015, vol. 2015–August, pp. 128–135.
  ista: 'Edelsbrunner H, Iglesias Ham M, Kurlin V. 2015. Relaxed disk packing. Proceedings
    of the 27th Canadian Conference on Computational Geometry. CCCG: Canadian Conference
    on Computational Geometry vol. 2015–August, 128–135.'
  mla: Edelsbrunner, Herbert, et al. “Relaxed Disk Packing.” <i>Proceedings of the
    27th Canadian Conference on Computational Geometry</i>, vol. 2015–August, Queen’s
    University, 2015, pp. 128–35.
  short: H. Edelsbrunner, M. Iglesias Ham, V. Kurlin, in:, Proceedings of the 27th
    Canadian Conference on Computational Geometry, Queen’s University, 2015, pp. 128–135.
conference:
  end_date: 2015-08-12
  location: Ontario, Canada
  name: 'CCCG: Canadian Conference on Computational Geometry'
  start_date: 2015-08-10
date_created: 2018-12-11T11:52:21Z
date_published: 2015-08-01T00:00:00Z
date_updated: 2021-01-12T06:51:09Z
day: '01'
department:
- _id: HeEd
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1505.03402
month: '08'
oa: 1
oa_version: Submitted Version
page: 128-135
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Proceedings of the 27th Canadian Conference on Computational Geometry
publication_status: published
publisher: Queen's University
publist_id: '5684'
quality_controlled: '1'
scopus_import: 1
status: public
title: Relaxed disk packing
type: conference
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 2015-August
year: '2015'
...
---
_id: '10817'
abstract:
- lang: eng
  text: The Morse-Smale complex can be either explicitly or implicitly represented.
    Depending on the type of representation, the simplification of the Morse-Smale
    complex works differently. In the explicit representation, the Morse-Smale complex
    is directly simplified by explicitly reconnecting the critical points during the
    simplification. In the implicit representation, on the other hand, the Morse-Smale
    complex is given by a combinatorial gradient field. In this setting, the simplification
    changes the combinatorial flow, which yields an indirect simplification of the
    Morse-Smale complex. The topological complexity of the Morse-Smale complex is
    reduced in both representations. However, the simplifications generally yield
    different results. In this chapter, we emphasize properties of the two representations
    that cause these differences. We also provide a complexity analysis of the two
    schemes with respect to running time and memory consumption.
acknowledgement: This research is supported and funded by the Digiteo unTopoVis project,
  the TOPOSYS project FP7-ICT-318493-STREP, and MPC-VCC.
article_processing_charge: No
author:
- first_name: David
  full_name: Günther, David
  last_name: Günther
- first_name: Jan
  full_name: Reininghaus, Jan
  id: 4505473A-F248-11E8-B48F-1D18A9856A87
  last_name: Reininghaus
- first_name: Hans-Peter
  full_name: Seidel, Hans-Peter
  last_name: Seidel
- first_name: Tino
  full_name: Weinkauf, Tino
  last_name: Weinkauf
citation:
  ama: 'Günther D, Reininghaus J, Seidel H-P, Weinkauf T. Notes on the simplification
    of the Morse-Smale complex. In: Bremer P-T, Hotz I, Pascucci V, Peikert R, eds.
    <i>Topological Methods in Data Analysis and Visualization III.</i> Mathematics
    and Visualization. Cham: Springer Nature; 2014:135-150. doi:<a href="https://doi.org/10.1007/978-3-319-04099-8_9">10.1007/978-3-319-04099-8_9</a>'
  apa: 'Günther, D., Reininghaus, J., Seidel, H.-P., &#38; Weinkauf, T. (2014). Notes
    on the simplification of the Morse-Smale complex. In P.-T. Bremer, I. Hotz, V.
    Pascucci, &#38; R. Peikert (Eds.), <i>Topological Methods in Data Analysis and
    Visualization III.</i> (pp. 135–150). Cham: Springer Nature. <a href="https://doi.org/10.1007/978-3-319-04099-8_9">https://doi.org/10.1007/978-3-319-04099-8_9</a>'
  chicago: 'Günther, David, Jan Reininghaus, Hans-Peter Seidel, and Tino Weinkauf.
    “Notes on the Simplification of the Morse-Smale Complex.” In <i>Topological Methods
    in Data Analysis and Visualization III.</i>, edited by Peer-Timo Bremer, Ingrid
    Hotz, Valerio Pascucci, and Ronald Peikert, 135–50. Mathematics and Visualization.
    Cham: Springer Nature, 2014. <a href="https://doi.org/10.1007/978-3-319-04099-8_9">https://doi.org/10.1007/978-3-319-04099-8_9</a>.'
  ieee: 'D. Günther, J. Reininghaus, H.-P. Seidel, and T. Weinkauf, “Notes on the
    simplification of the Morse-Smale complex,” in <i>Topological Methods in Data
    Analysis and Visualization III.</i>, P.-T. Bremer, I. Hotz, V. Pascucci, and R.
    Peikert, Eds. Cham: Springer Nature, 2014, pp. 135–150.'
  ista: 'Günther D, Reininghaus J, Seidel H-P, Weinkauf T. 2014.Notes on the simplification
    of the Morse-Smale complex. In: Topological Methods in Data Analysis and Visualization
    III. , 135–150.'
  mla: Günther, David, et al. “Notes on the Simplification of the Morse-Smale Complex.”
    <i>Topological Methods in Data Analysis and Visualization III.</i>, edited by
    Peer-Timo Bremer et al., Springer Nature, 2014, pp. 135–50, doi:<a href="https://doi.org/10.1007/978-3-319-04099-8_9">10.1007/978-3-319-04099-8_9</a>.
  short: D. Günther, J. Reininghaus, H.-P. Seidel, T. Weinkauf, in:, P.-T. Bremer,
    I. Hotz, V. Pascucci, R. Peikert (Eds.), Topological Methods in Data Analysis
    and Visualization III., Springer Nature, Cham, 2014, pp. 135–150.
date_created: 2022-03-04T08:33:57Z
date_published: 2014-03-19T00:00:00Z
date_updated: 2023-09-05T15:33:45Z
day: '19'
department:
- _id: HeEd
doi: 10.1007/978-3-319-04099-8_9
ec_funded: 1
editor:
- first_name: Peer-Timo
  full_name: Bremer, Peer-Timo
  last_name: Bremer
- first_name: Ingrid
  full_name: Hotz, Ingrid
  last_name: Hotz
- first_name: Valerio
  full_name: Pascucci, Valerio
  last_name: Pascucci
- first_name: Ronald
  full_name: Peikert, Ronald
  last_name: Peikert
language:
- iso: eng
month: '03'
oa_version: None
page: 135-150
place: Cham
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Topological Methods in Data Analysis and Visualization III.
publication_identifier:
  eisbn:
  - '9783319040998'
  eissn:
  - 2197-666X
  isbn:
  - '9783319040981'
  issn:
  - 1612-3786
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
series_title: Mathematics and Visualization
status: public
title: Notes on the simplification of the Morse-Smale complex
type: book_chapter
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2014'
...
---
_id: '10893'
abstract:
- lang: eng
  text: Saddle periodic orbits are an essential and stable part of the topological
    skeleton of a 3D vector field. Nevertheless, there is currently no efficient algorithm
    to robustly extract these features. In this chapter, we present a novel technique
    to extract saddle periodic orbits. Exploiting the analytic properties of such
    an orbit, we propose a scalar measure based on the finite-time Lyapunov exponent
    (FTLE) that indicates its presence. Using persistent homology, we can then extract
    the robust cycles of this field. These cycles thereby represent the saddle periodic
    orbits of the given vector field. We discuss the different existing FTLE approximation
    schemes regarding their applicability to this specific problem and propose an
    adapted version of FTLE called Normalized Velocity Separation. Finally, we evaluate
    our method using simple analytic vector field data.
acknowledgement: First, we thank the reviewers of this paper for their ideas and critical
  comments. In addition, we thank Ronny Peikert and Filip Sadlo for a fruitful discussions.
  This research is supported by the European Commission under the TOPOSYS project
  FP7-ICT-318493-STREP, the European Social Fund (ESF App. No. 100098251), and the
  European Science Foundation under the ACAT Research Network Program.
article_processing_charge: No
author:
- first_name: Jens
  full_name: Kasten, Jens
  last_name: Kasten
- first_name: Jan
  full_name: Reininghaus, Jan
  id: 4505473A-F248-11E8-B48F-1D18A9856A87
  last_name: Reininghaus
- first_name: Wieland
  full_name: Reich, Wieland
  last_name: Reich
- first_name: Gerik
  full_name: Scheuermann, Gerik
  last_name: Scheuermann
citation:
  ama: 'Kasten J, Reininghaus J, Reich W, Scheuermann G. Toward the extraction of
    saddle periodic orbits. In: Bremer P-T, Hotz I, Pascucci V, Peikert R, eds. <i>Topological
    Methods in Data Analysis and Visualization III </i>. Vol 1. Mathematics and Visualization.
    Cham: Springer; 2014:55-69. doi:<a href="https://doi.org/10.1007/978-3-319-04099-8_4">10.1007/978-3-319-04099-8_4</a>'
  apa: 'Kasten, J., Reininghaus, J., Reich, W., &#38; Scheuermann, G. (2014). Toward
    the extraction of saddle periodic orbits. In P.-T. Bremer, I. Hotz, V. Pascucci,
    &#38; R. Peikert (Eds.), <i>Topological Methods in Data Analysis and Visualization
    III </i> (Vol. 1, pp. 55–69). Cham: Springer. <a href="https://doi.org/10.1007/978-3-319-04099-8_4">https://doi.org/10.1007/978-3-319-04099-8_4</a>'
  chicago: 'Kasten, Jens, Jan Reininghaus, Wieland Reich, and Gerik Scheuermann. “Toward
    the Extraction of Saddle Periodic Orbits.” In <i>Topological Methods in Data Analysis
    and Visualization III </i>, edited by Peer-Timo Bremer, Ingrid Hotz, Valerio Pascucci,
    and Ronald Peikert, 1:55–69. Mathematics and Visualization. Cham: Springer, 2014.
    <a href="https://doi.org/10.1007/978-3-319-04099-8_4">https://doi.org/10.1007/978-3-319-04099-8_4</a>.'
  ieee: 'J. Kasten, J. Reininghaus, W. Reich, and G. Scheuermann, “Toward the extraction
    of saddle periodic orbits,” in <i>Topological Methods in Data Analysis and Visualization
    III </i>, vol. 1, P.-T. Bremer, I. Hotz, V. Pascucci, and R. Peikert, Eds. Cham:
    Springer, 2014, pp. 55–69.'
  ista: 'Kasten J, Reininghaus J, Reich W, Scheuermann G. 2014.Toward the extraction
    of saddle periodic orbits. In: Topological Methods in Data Analysis and Visualization
    III . vol. 1, 55–69.'
  mla: Kasten, Jens, et al. “Toward the Extraction of Saddle Periodic Orbits.” <i>Topological
    Methods in Data Analysis and Visualization III </i>, edited by Peer-Timo Bremer
    et al., vol. 1, Springer, 2014, pp. 55–69, doi:<a href="https://doi.org/10.1007/978-3-319-04099-8_4">10.1007/978-3-319-04099-8_4</a>.
  short: J. Kasten, J. Reininghaus, W. Reich, G. Scheuermann, in:, P.-T. Bremer, I.
    Hotz, V. Pascucci, R. Peikert (Eds.), Topological Methods in Data Analysis and
    Visualization III , Springer, Cham, 2014, pp. 55–69.
date_created: 2022-03-21T07:11:23Z
date_published: 2014-03-19T00:00:00Z
date_updated: 2022-06-21T12:01:47Z
day: '19'
department:
- _id: HeEd
doi: 10.1007/978-3-319-04099-8_4
ec_funded: 1
editor:
- first_name: Peer-Timo
  full_name: Bremer, Peer-Timo
  last_name: Bremer
- first_name: Ingrid
  full_name: Hotz, Ingrid
  last_name: Hotz
- first_name: Valerio
  full_name: Pascucci, Valerio
  last_name: Pascucci
- first_name: Ronald
  full_name: Peikert, Ronald
  last_name: Peikert
intvolume: '         1'
language:
- iso: eng
month: '03'
oa_version: None
page: 55-69
place: Cham
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: 'Topological Methods in Data Analysis and Visualization III '
publication_identifier:
  eisbn:
  - '9783319040998'
  eissn:
  - 2197-666X
  isbn:
  - '9783319040981'
  issn:
  - 1612-3786
publication_status: published
publisher: Springer
quality_controlled: '1'
scopus_import: '1'
series_title: Mathematics and Visualization
status: public
title: Toward the extraction of saddle periodic orbits
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1
year: '2014'
...
---
_id: '2043'
abstract:
- lang: eng
  text: Persistent homology is a popular and powerful tool for capturing topological
    features of data. Advances in algorithms for computing persistent homology have
    reduced the computation time drastically – as long as the algorithm does not exhaust
    the available memory. Following up on a recently presented parallel method for
    persistence computation on shared memory systems [1], we demonstrate that a simple
    adaption of the standard reduction algorithm leads to a variant for distributed
    systems. Our algorithmic design ensures that the data is distributed over the
    nodes without redundancy; this permits the computation of much larger instances
    than on a single machine. Moreover, we observe that the parallelism at least compensates
    for the overhead caused by communication between nodes, and often even speeds
    up the computation compared to sequential and even parallel shared memory algorithms.
    In our experiments, we were able to compute the persistent homology of filtrations
    with more than a billion (109) elements within seconds on a cluster with 32 nodes
    using less than 6GB of memory per node.
author:
- first_name: Ulrich
  full_name: Bauer, Ulrich
  id: 2ADD483A-F248-11E8-B48F-1D18A9856A87
  last_name: Bauer
  orcid: 0000-0002-9683-0724
- first_name: Michael
  full_name: Kerber, Michael
  last_name: Kerber
  orcid: 0000-0002-8030-9299
- first_name: Jan
  full_name: Reininghaus, Jan
  id: 4505473A-F248-11E8-B48F-1D18A9856A87
  last_name: Reininghaus
citation:
  ama: 'Bauer U, Kerber M, Reininghaus J. Distributed computation of persistent homology.
    In:  McGeoch C, Meyer U, eds. <i>Proceedings of the Workshop on Algorithm Engineering
    and Experiments</i>. Society of Industrial and Applied Mathematics; 2014:31-38.
    doi:<a href="https://doi.org/10.1137/1.9781611973198.4">10.1137/1.9781611973198.4</a>'
  apa: 'Bauer, U., Kerber, M., &#38; Reininghaus, J. (2014). Distributed computation
    of persistent homology. In C.  McGeoch &#38; U. Meyer (Eds.), <i>Proceedings of
    the Workshop on Algorithm Engineering and Experiments</i> (pp. 31–38). Portland,
    USA: Society of Industrial and Applied Mathematics. <a href="https://doi.org/10.1137/1.9781611973198.4">https://doi.org/10.1137/1.9781611973198.4</a>'
  chicago: Bauer, Ulrich, Michael Kerber, and Jan Reininghaus. “Distributed Computation
    of Persistent Homology.” In <i>Proceedings of the Workshop on Algorithm Engineering
    and Experiments</i>, edited by Catherine  McGeoch and Ulrich Meyer, 31–38. Society
    of Industrial and Applied Mathematics, 2014. <a href="https://doi.org/10.1137/1.9781611973198.4">https://doi.org/10.1137/1.9781611973198.4</a>.
  ieee: U. Bauer, M. Kerber, and J. Reininghaus, “Distributed computation of persistent
    homology,” in <i>Proceedings of the Workshop on Algorithm Engineering and Experiments</i>,
    Portland, USA, 2014, pp. 31–38.
  ista: 'Bauer U, Kerber M, Reininghaus J. 2014. Distributed computation of persistent
    homology. Proceedings of the Workshop on Algorithm Engineering and Experiments.
    ALENEX: Algorithm Engineering and Experiments, 31–38.'
  mla: Bauer, Ulrich, et al. “Distributed Computation of Persistent Homology.” <i>Proceedings
    of the Workshop on Algorithm Engineering and Experiments</i>, edited by Catherine  McGeoch
    and Ulrich Meyer, Society of Industrial and Applied Mathematics, 2014, pp. 31–38,
    doi:<a href="https://doi.org/10.1137/1.9781611973198.4">10.1137/1.9781611973198.4</a>.
  short: U. Bauer, M. Kerber, J. Reininghaus, in:, C.  McGeoch, U. Meyer (Eds.), Proceedings
    of the Workshop on Algorithm Engineering and Experiments, Society of Industrial
    and Applied Mathematics, 2014, pp. 31–38.
conference:
  end_date: 2014-01-05
  location: Portland, USA
  name: 'ALENEX: Algorithm Engineering and Experiments'
  start_date: 2014-01-05
date_created: 2018-12-11T11:55:23Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2021-01-12T06:54:56Z
day: '01'
department:
- _id: HeEd
doi: 10.1137/1.9781611973198.4
ec_funded: 1
editor:
- first_name: Catherine
  full_name: ' McGeoch, Catherine'
  last_name: ' McGeoch'
- first_name: Ulrich
  full_name: Meyer, Ulrich
  last_name: Meyer
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1310.0710
month: '01'
oa: 1
oa_version: Submitted Version
page: 31 - 38
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Proceedings of the Workshop on Algorithm Engineering and Experiments
publication_status: published
publisher: Society of Industrial and Applied Mathematics
publist_id: '5008'
quality_controlled: '1'
scopus_import: 1
status: public
title: Distributed computation of persistent homology
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '2044'
abstract:
- lang: eng
  text: We present a parallel algorithm for computing the persistent homology of a
    filtered chain complex. Our approach differs from the commonly used reduction
    algorithm by first computing persistence pairs within local chunks, then simplifying
    the unpaired columns, and finally applying standard reduction on the simplified
    matrix. The approach generalizes a technique by Günther et al., which uses discrete
    Morse Theory to compute persistence; we derive the same worst-case complexity
    bound in a more general context. The algorithm employs several practical optimization
    techniques, which are of independent interest. Our sequential implementation of
    the algorithm is competitive with state-of-the-art methods, and we further improve
    the performance through parallel computation.
author:
- first_name: Ulrich
  full_name: Bauer, Ulrich
  id: 2ADD483A-F248-11E8-B48F-1D18A9856A87
  last_name: Bauer
  orcid: 0000-0002-9683-0724
- first_name: Michael
  full_name: Kerber, Michael
  last_name: Kerber
  orcid: 0000-0002-8030-9299
- first_name: Jan
  full_name: Reininghaus, Jan
  id: 4505473A-F248-11E8-B48F-1D18A9856A87
  last_name: Reininghaus
citation:
  ama: 'Bauer U, Kerber M, Reininghaus J. Clear and Compress: Computing Persistent
    Homology in Chunks. In: Bremer P-T, Hotz I, Pascucci V, Peikert R, eds. <i>Topological
    Methods in Data Analysis and Visualization III</i>. Mathematics and Visualization.
    Springer; 2014:103-117. doi:<a href="https://doi.org/10.1007/978-3-319-04099-8_7">10.1007/978-3-319-04099-8_7</a>'
  apa: 'Bauer, U., Kerber, M., &#38; Reininghaus, J. (2014). Clear and Compress: Computing
    Persistent Homology in Chunks. In P.-T. Bremer, I. Hotz, V. Pascucci, &#38; R.
    Peikert (Eds.), <i>Topological Methods in Data Analysis and Visualization III</i>
    (pp. 103–117). Springer. <a href="https://doi.org/10.1007/978-3-319-04099-8_7">https://doi.org/10.1007/978-3-319-04099-8_7</a>'
  chicago: 'Bauer, Ulrich, Michael Kerber, and Jan Reininghaus. “Clear and Compress:
    Computing Persistent Homology in Chunks.” In <i>Topological Methods in Data Analysis
    and Visualization III</i>, edited by Peer-Timo Bremer, Ingrid Hotz, Valerio Pascucci,
    and Ronald Peikert, 103–17. Mathematics and Visualization. Springer, 2014. <a
    href="https://doi.org/10.1007/978-3-319-04099-8_7">https://doi.org/10.1007/978-3-319-04099-8_7</a>.'
  ieee: 'U. Bauer, M. Kerber, and J. Reininghaus, “Clear and Compress: Computing Persistent
    Homology in Chunks,” in <i>Topological Methods in Data Analysis and Visualization
    III</i>, P.-T. Bremer, I. Hotz, V. Pascucci, and R. Peikert, Eds. Springer, 2014,
    pp. 103–117.'
  ista: 'Bauer U, Kerber M, Reininghaus J. 2014.Clear and Compress: Computing Persistent
    Homology in Chunks. In: Topological Methods in Data Analysis and Visualization
    III. , 103–117.'
  mla: 'Bauer, Ulrich, et al. “Clear and Compress: Computing Persistent Homology in
    Chunks.” <i>Topological Methods in Data Analysis and Visualization III</i>, edited
    by Peer-Timo Bremer et al., Springer, 2014, pp. 103–17, doi:<a href="https://doi.org/10.1007/978-3-319-04099-8_7">10.1007/978-3-319-04099-8_7</a>.'
  short: U. Bauer, M. Kerber, J. Reininghaus, in:, P.-T. Bremer, I. Hotz, V. Pascucci,
    R. Peikert (Eds.), Topological Methods in Data Analysis and Visualization III,
    Springer, 2014, pp. 103–117.
date_created: 2018-12-11T11:55:23Z
date_published: 2014-03-19T00:00:00Z
date_updated: 2021-01-12T06:54:56Z
day: '19'
department:
- _id: HeEd
doi: 10.1007/978-3-319-04099-8_7
ec_funded: 1
editor:
- first_name: Peer-Timo
  full_name: Bremer, Peer-Timo
  last_name: Bremer
- first_name: Ingrid
  full_name: Hotz, Ingrid
  last_name: Hotz
- first_name: Valerio
  full_name: Pascucci, Valerio
  last_name: Pascucci
- first_name: Ronald
  full_name: Peikert, Ronald
  last_name: Peikert
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1303.0477
month: '03'
oa: 1
oa_version: Submitted Version
page: 103 - 117
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Topological Methods in Data Analysis and Visualization III
publication_status: published
publisher: Springer
publist_id: '5007'
quality_controlled: '1'
scopus_import: 1
series_title: Mathematics and Visualization
status: public
title: 'Clear and Compress: Computing Persistent Homology in Chunks'
type: book_chapter
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '2153'
abstract:
- lang: eng
  text: 'We define a simple, explicit map sending a morphism f : M → N of pointwise
    finite dimensional persistence modules to a matching between the barcodes of M
    and N. Our main result is that, in a precise sense, the quality of this matching
    is tightly controlled by the lengths of the longest intervals in the barcodes
    of ker f and coker f . As an immediate corollary, we obtain a new proof of the
    algebraic stability theorem for persistence barcodes [5, 9], a fundamental result
    in the theory of persistent homology. In contrast to previous proofs, ours shows
    explicitly how a δ-interleaving morphism between two persistence modules induces
    a δ-matching between the barcodes of the two modules. Our main result also specializes
    to a structure theorem for submodules and quotients of persistence modules. Copyright
    is held by the owner/author(s).'
author:
- first_name: Ulrich
  full_name: Bauer, Ulrich
  id: 2ADD483A-F248-11E8-B48F-1D18A9856A87
  last_name: Bauer
  orcid: 0000-0002-9683-0724
- first_name: Michael
  full_name: Lesnick, Michael
  last_name: Lesnick
citation:
  ama: 'Bauer U, Lesnick M. Induced matchings of barcodes and the algebraic stability
    of persistence. In: <i>Proceedings of the Annual Symposium on Computational Geometry</i>.
    ACM; 2014:355-364. doi:<a href="https://doi.org/10.1145/2582112.2582168">10.1145/2582112.2582168</a>'
  apa: 'Bauer, U., &#38; Lesnick, M. (2014). Induced matchings of barcodes and the
    algebraic stability of persistence. In <i>Proceedings of the Annual Symposium
    on Computational Geometry</i> (pp. 355–364). Kyoto, Japan: ACM. <a href="https://doi.org/10.1145/2582112.2582168">https://doi.org/10.1145/2582112.2582168</a>'
  chicago: Bauer, Ulrich, and Michael Lesnick. “Induced Matchings of Barcodes and
    the Algebraic Stability of Persistence.” In <i>Proceedings of the Annual Symposium
    on Computational Geometry</i>, 355–64. ACM, 2014. <a href="https://doi.org/10.1145/2582112.2582168">https://doi.org/10.1145/2582112.2582168</a>.
  ieee: U. Bauer and M. Lesnick, “Induced matchings of barcodes and the algebraic
    stability of persistence,” in <i>Proceedings of the Annual Symposium on Computational
    Geometry</i>, Kyoto, Japan, 2014, pp. 355–364.
  ista: 'Bauer U, Lesnick M. 2014. Induced matchings of barcodes and the algebraic
    stability of persistence. Proceedings of the Annual Symposium on Computational
    Geometry. SoCG: Symposium on Computational Geometry, 355–364.'
  mla: Bauer, Ulrich, and Michael Lesnick. “Induced Matchings of Barcodes and the
    Algebraic Stability of Persistence.” <i>Proceedings of the Annual Symposium on
    Computational Geometry</i>, ACM, 2014, pp. 355–64, doi:<a href="https://doi.org/10.1145/2582112.2582168">10.1145/2582112.2582168</a>.
  short: U. Bauer, M. Lesnick, in:, Proceedings of the Annual Symposium on Computational
    Geometry, ACM, 2014, pp. 355–364.
conference:
  end_date: 2014-06-11
  location: Kyoto, Japan
  name: 'SoCG: Symposium on Computational Geometry'
  start_date: 2014-06-08
date_created: 2018-12-11T11:56:01Z
date_published: 2014-06-01T00:00:00Z
date_updated: 2021-01-12T06:55:38Z
day: '01'
department:
- _id: HeEd
doi: 10.1145/2582112.2582168
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1311.3681
month: '06'
oa: 1
oa_version: Submitted Version
page: 355 - 364
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Proceedings of the Annual Symposium on Computational Geometry
publication_status: published
publisher: ACM
publist_id: '4853'
quality_controlled: '1'
scopus_import: 1
status: public
title: Induced matchings of barcodes and the algebraic stability of persistence
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '2155'
abstract:
- lang: eng
  text: Given a finite set of points in Rn and a positive radius, we study the Čech,
    Delaunay-Čech, alpha, and wrap complexes as instances of a generalized discrete
    Morse theory. We prove that the latter three complexes are simple-homotopy equivalent.
    Our results have applications in topological data analysis and in the reconstruction
    of shapes from sampled data. Copyright is held by the owner/author(s).
acknowledgement: This research is partially supported by ESF under the ACAT Research
  Network Programme, and by the Russian Government under mega project 11.G34.31.0053
author:
- first_name: Ulrich
  full_name: Bauer, Ulrich
  id: 2ADD483A-F248-11E8-B48F-1D18A9856A87
  last_name: Bauer
  orcid: 0000-0002-9683-0724
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
citation:
  ama: 'Bauer U, Edelsbrunner H. The morse theory of Čech and Delaunay filtrations.
    In: <i>Proceedings of the Annual Symposium on Computational Geometry</i>. ACM;
    2014:484-490. doi:<a href="https://doi.org/10.1145/2582112.2582167">10.1145/2582112.2582167</a>'
  apa: 'Bauer, U., &#38; Edelsbrunner, H. (2014). The morse theory of Čech and Delaunay
    filtrations. In <i>Proceedings of the Annual Symposium on Computational Geometry</i>
    (pp. 484–490). Kyoto, Japan: ACM. <a href="https://doi.org/10.1145/2582112.2582167">https://doi.org/10.1145/2582112.2582167</a>'
  chicago: Bauer, Ulrich, and Herbert Edelsbrunner. “The Morse Theory of Čech and
    Delaunay Filtrations.” In <i>Proceedings of the Annual Symposium on Computational
    Geometry</i>, 484–90. ACM, 2014. <a href="https://doi.org/10.1145/2582112.2582167">https://doi.org/10.1145/2582112.2582167</a>.
  ieee: U. Bauer and H. Edelsbrunner, “The morse theory of Čech and Delaunay filtrations,”
    in <i>Proceedings of the Annual Symposium on Computational Geometry</i>, Kyoto,
    Japan, 2014, pp. 484–490.
  ista: 'Bauer U, Edelsbrunner H. 2014. The morse theory of Čech and Delaunay filtrations.
    Proceedings of the Annual Symposium on Computational Geometry. SoCG: Symposium
    on Computational Geometry, 484–490.'
  mla: Bauer, Ulrich, and Herbert Edelsbrunner. “The Morse Theory of Čech and Delaunay
    Filtrations.” <i>Proceedings of the Annual Symposium on Computational Geometry</i>,
    ACM, 2014, pp. 484–90, doi:<a href="https://doi.org/10.1145/2582112.2582167">10.1145/2582112.2582167</a>.
  short: U. Bauer, H. Edelsbrunner, in:, Proceedings of the Annual Symposium on Computational
    Geometry, ACM, 2014, pp. 484–490.
conference:
  end_date: 2014-06-11
  location: Kyoto, Japan
  name: 'SoCG: Symposium on Computational Geometry'
  start_date: 2014-06-08
date_created: 2018-12-11T11:56:01Z
date_published: 2014-06-01T00:00:00Z
date_updated: 2021-01-12T06:55:38Z
day: '01'
department:
- _id: HeEd
doi: 10.1145/2582112.2582167
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1312.1231
month: '06'
oa: 1
oa_version: Submitted Version
page: 484 - 490
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Proceedings of the Annual Symposium on Computational Geometry
publication_status: published
publisher: ACM
publist_id: '4851'
quality_controlled: '1'
scopus_import: 1
status: public
title: The morse theory of Čech and Delaunay filtrations
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '2156'
abstract:
- lang: eng
  text: We propose a metric for Reeb graphs, called the functional distortion distance.
    Under this distance, the Reeb graph is stable against small changes of input functions.
    At the same time, it remains discriminative at differentiating input functions.
    In particular, the main result is that the functional distortion distance between
    two Reeb graphs is bounded from below by the bottleneck distance between both
    the ordinary and extended persistence diagrams for appropriate dimensions. As
    an application of our results, we analyze a natural simplification scheme for
    Reeb graphs, and show that persistent features in Reeb graph remains persistent
    under simplification. Understanding the stability of important features of the
    Reeb graph under simplification is an interesting problem on its own right, and
    critical to the practical usage of Reeb graphs. Copyright is held by the owner/author(s).
acknowledgement: National Science Foundation under grants CCF-1319406, CCF-1116258.
author:
- first_name: Ulrich
  full_name: Bauer, Ulrich
  id: 2ADD483A-F248-11E8-B48F-1D18A9856A87
  last_name: Bauer
  orcid: 0000-0002-9683-0724
- first_name: Xiaoyin
  full_name: Ge, Xiaoyin
  last_name: Ge
- first_name: Yusu
  full_name: Wang, Yusu
  last_name: Wang
citation:
  ama: 'Bauer U, Ge X, Wang Y. Measuring distance between Reeb graphs. In: <i>Proceedings
    of the Annual Symposium on Computational Geometry</i>. ACM; 2014:464-473. doi:<a
    href="https://doi.org/10.1145/2582112.2582169">10.1145/2582112.2582169</a>'
  apa: 'Bauer, U., Ge, X., &#38; Wang, Y. (2014). Measuring distance between Reeb
    graphs. In <i>Proceedings of the Annual Symposium on Computational Geometry</i>
    (pp. 464–473). Kyoto, Japan: ACM. <a href="https://doi.org/10.1145/2582112.2582169">https://doi.org/10.1145/2582112.2582169</a>'
  chicago: Bauer, Ulrich, Xiaoyin Ge, and Yusu Wang. “Measuring Distance between Reeb
    Graphs.” In <i>Proceedings of the Annual Symposium on Computational Geometry</i>,
    464–73. ACM, 2014. <a href="https://doi.org/10.1145/2582112.2582169">https://doi.org/10.1145/2582112.2582169</a>.
  ieee: U. Bauer, X. Ge, and Y. Wang, “Measuring distance between Reeb graphs,” in
    <i>Proceedings of the Annual Symposium on Computational Geometry</i>, Kyoto, Japan,
    2014, pp. 464–473.
  ista: 'Bauer U, Ge X, Wang Y. 2014. Measuring distance between Reeb graphs. Proceedings
    of the Annual Symposium on Computational Geometry. SoCG: Symposium on Computational
    Geometry, 464–473.'
  mla: Bauer, Ulrich, et al. “Measuring Distance between Reeb Graphs.” <i>Proceedings
    of the Annual Symposium on Computational Geometry</i>, ACM, 2014, pp. 464–73,
    doi:<a href="https://doi.org/10.1145/2582112.2582169">10.1145/2582112.2582169</a>.
  short: U. Bauer, X. Ge, Y. Wang, in:, Proceedings of the Annual Symposium on Computational
    Geometry, ACM, 2014, pp. 464–473.
conference:
  end_date: 2014-06-11
  location: Kyoto, Japan
  name: 'SoCG: Symposium on Computational Geometry'
  start_date: 2014-06-08
date_created: 2018-12-11T11:56:02Z
date_published: 2014-06-01T00:00:00Z
date_updated: 2021-01-12T06:55:39Z
day: '01'
department:
- _id: HeEd
doi: 10.1145/2582112.2582169
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1307.2839
month: '06'
oa: 1
oa_version: Submitted Version
page: 464 - 473
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Proceedings of the Annual Symposium on Computational Geometry
publication_status: published
publisher: ACM
publist_id: '4850'
quality_controlled: '1'
scopus_import: 1
status: public
title: Measuring distance between Reeb graphs
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '2255'
abstract:
- lang: eng
  text: Motivated by applications in biology, we present an algorithm for estimating
    the length of tube-like shapes in 3-dimensional Euclidean space. In a first step,
    we combine the tube formula of Weyl with integral geometric methods to obtain
    an integral representation of the length, which we approximate using a variant
    of the Koksma-Hlawka Theorem. In a second step, we use tools from computational
    topology to decrease the dependence on small perturbations of the shape. We present
    computational experiments that shed light on the stability and the convergence
    rate of our algorithm.
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Florian
  full_name: Pausinger, Florian
  id: 2A77D7A2-F248-11E8-B48F-1D18A9856A87
  last_name: Pausinger
  orcid: 0000-0002-8379-3768
citation:
  ama: Edelsbrunner H, Pausinger F. Stable length estimates of tube-like shapes. <i>Journal
    of Mathematical Imaging and Vision</i>. 2014;50(1):164-177. doi:<a href="https://doi.org/10.1007/s10851-013-0468-x">10.1007/s10851-013-0468-x</a>
  apa: Edelsbrunner, H., &#38; Pausinger, F. (2014). Stable length estimates of tube-like
    shapes. <i>Journal of Mathematical Imaging and Vision</i>. Springer. <a href="https://doi.org/10.1007/s10851-013-0468-x">https://doi.org/10.1007/s10851-013-0468-x</a>
  chicago: Edelsbrunner, Herbert, and Florian Pausinger. “Stable Length Estimates
    of Tube-like Shapes.” <i>Journal of Mathematical Imaging and Vision</i>. Springer,
    2014. <a href="https://doi.org/10.1007/s10851-013-0468-x">https://doi.org/10.1007/s10851-013-0468-x</a>.
  ieee: H. Edelsbrunner and F. Pausinger, “Stable length estimates of tube-like shapes,”
    <i>Journal of Mathematical Imaging and Vision</i>, vol. 50, no. 1. Springer, pp.
    164–177, 2014.
  ista: Edelsbrunner H, Pausinger F. 2014. Stable length estimates of tube-like shapes.
    Journal of Mathematical Imaging and Vision. 50(1), 164–177.
  mla: Edelsbrunner, Herbert, and Florian Pausinger. “Stable Length Estimates of Tube-like
    Shapes.” <i>Journal of Mathematical Imaging and Vision</i>, vol. 50, no. 1, Springer,
    2014, pp. 164–77, doi:<a href="https://doi.org/10.1007/s10851-013-0468-x">10.1007/s10851-013-0468-x</a>.
  short: H. Edelsbrunner, F. Pausinger, Journal of Mathematical Imaging and Vision
    50 (2014) 164–177.
date_created: 2018-12-11T11:56:36Z
date_published: 2014-09-01T00:00:00Z
date_updated: 2023-09-07T11:41:25Z
day: '01'
ddc:
- '000'
department:
- _id: HeEd
doi: 10.1007/s10851-013-0468-x
ec_funded: 1
file:
- access_level: open_access
  checksum: 2f93f3e63a38a85cd4404d7953913b14
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:16:18Z
  date_updated: 2020-07-14T12:45:35Z
  file_id: '5204'
  file_name: IST-2016-549-v1+1_2014-J-06-LengthEstimate.pdf
  file_size: 3941391
  relation: main_file
file_date_updated: 2020-07-14T12:45:35Z
has_accepted_license: '1'
intvolume: '        50'
issue: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Submitted Version
page: 164 - 177
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Journal of Mathematical Imaging and Vision
publication_identifier:
  issn:
  - '09249907'
publication_status: published
publisher: Springer
publist_id: '4691'
pubrep_id: '549'
quality_controlled: '1'
related_material:
  record:
  - id: '2843'
    relation: earlier_version
    status: public
  - id: '1399'
    relation: dissertation_contains
    status: public
scopus_import: 1
status: public
title: Stable length estimates of tube-like shapes
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 50
year: '2014'
...
---
_id: '10897'
abstract:
- lang: eng
  text: Taking images is an efficient way to collect data about the physical world.
    It can be done fast and in exquisite detail. By definition, image processing is
    the field that concerns itself with the computation aimed at harnessing the information
    contained in images [10]. This talk is concerned with topological information.
    Our main thesis is that persistent homology [5] is a useful method to quantify
    and summarize topological information, building a bridge that connects algebraic
    topology with applications. We provide supporting evidence for this thesis by
    touching upon four technical developments in the overlap between persistent homology
    and image processing.
acknowledgement: This research is partially supported by the European Science Foundation
  (ESF) under the Research Network Programme, the European Union under the Toposys
  Project FP7-ICT-318493-STREP, the Russian Government under the Mega Project 11.G34.31.0053.
article_processing_charge: No
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
citation:
  ama: 'Edelsbrunner H. Persistent homology in image processing. In: <i>Graph-Based
    Representations in Pattern Recognition</i>. Vol 7877. LNCS. Berlin, Heidelberg:
    Springer Nature; 2013:182-183. doi:<a href="https://doi.org/10.1007/978-3-642-38221-5_19">10.1007/978-3-642-38221-5_19</a>'
  apa: 'Edelsbrunner, H. (2013). Persistent homology in image processing. In <i>Graph-Based
    Representations in Pattern Recognition</i> (Vol. 7877, pp. 182–183). Berlin, Heidelberg:
    Springer Nature. <a href="https://doi.org/10.1007/978-3-642-38221-5_19">https://doi.org/10.1007/978-3-642-38221-5_19</a>'
  chicago: 'Edelsbrunner, Herbert. “Persistent Homology in Image Processing.” In <i>Graph-Based
    Representations in Pattern Recognition</i>, 7877:182–83. LNCS. Berlin, Heidelberg:
    Springer Nature, 2013. <a href="https://doi.org/10.1007/978-3-642-38221-5_19">https://doi.org/10.1007/978-3-642-38221-5_19</a>.'
  ieee: H. Edelsbrunner, “Persistent homology in image processing,” in <i>Graph-Based
    Representations in Pattern Recognition</i>, Vienna, Austria, 2013, vol. 7877,
    pp. 182–183.
  ista: 'Edelsbrunner H. 2013. Persistent homology in image processing. Graph-Based
    Representations in Pattern Recognition. GbRPR: Graph-based Representations in
    Pattern RecognitionLNCS vol. 7877, 182–183.'
  mla: Edelsbrunner, Herbert. “Persistent Homology in Image Processing.” <i>Graph-Based
    Representations in Pattern Recognition</i>, vol. 7877, Springer Nature, 2013,
    pp. 182–83, doi:<a href="https://doi.org/10.1007/978-3-642-38221-5_19">10.1007/978-3-642-38221-5_19</a>.
  short: H. Edelsbrunner, in:, Graph-Based Representations in Pattern Recognition,
    Springer Nature, Berlin, Heidelberg, 2013, pp. 182–183.
conference:
  end_date: 2013-05-17
  location: Vienna, Austria
  name: 'GbRPR: Graph-based Representations in Pattern Recognition'
  start_date: 2013-05-15
date_created: 2022-03-21T07:30:33Z
date_published: 2013-06-01T00:00:00Z
date_updated: 2023-09-05T15:10:20Z
day: '01'
department:
- _id: HeEd
doi: 10.1007/978-3-642-38221-5_19
ec_funded: 1
intvolume: '      7877'
language:
- iso: eng
month: '06'
oa_version: None
page: 182-183
place: Berlin, Heidelberg
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '318493'
  name: Topological Complex Systems
publication: Graph-Based Representations in Pattern Recognition
publication_identifier:
  eisbn:
  - '9783642382215'
  eissn:
  - 1611-3349
  isbn:
  - '9783642382208'
  issn:
  - 0302-9743
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
series_title: LNCS
status: public
title: Persistent homology in image processing
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 7877
year: '2013'
...
