{"publication_status":"published","issue":"4","publication":"Annals of Combinatorics","abstract":[{"lang":"eng","text":"Let k, n, and r be positive integers with k < n and r≤⌊nk⌋. We determine the facets of the r-stable n, k-hypersimplex. As a result, it turns out that the r-stable n, k-hypersimplex has exactly 2n facets for every r<⌊nk⌋. We then utilize the equations of the facets to study when the r-stable hypersimplex is Gorenstein. For every k > 0 we identify an infinite collection of Gorenstein r-stable hypersimplices, consequently expanding the collection of r-stable hypersimplices known to have unimodal Ehrhart δ-vectors."}],"_id":"1156","author":[{"last_name":"Hibi","first_name":"Takayugi","full_name":"Hibi, Takayugi"},{"first_name":"Liam T","full_name":"Liam Solus","id":"2AADA620-F248-11E8-B48F-1D18A9856A87","last_name":"Solus"}],"doi":"10.1007/s00026-016-0325-x","quality_controlled":0,"title":"Facets of the r-stable (n, k)-hypersimplex","intvolume":" 20","date_updated":"2021-01-12T06:48:43Z","publist_id":"6202","volume":20,"extern":1,"type":"journal_article","date_published":"2016-12-01T00:00:00Z","publisher":"Springer","status":"public","year":"2016","page":"815 - 829","day":"01","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"citation":{"apa":"Hibi, T., & Solus, L. T. (2016). Facets of the r-stable (n, k)-hypersimplex. Annals of Combinatorics. Springer. https://doi.org/10.1007/s00026-016-0325-x","ista":"Hibi T, Solus LT. 2016. Facets of the r-stable (n, k)-hypersimplex. Annals of Combinatorics. 20(4), 815–829.","chicago":"Hibi, Takayugi, and Liam T Solus. “Facets of the R-Stable (n, k)-Hypersimplex.” Annals of Combinatorics. Springer, 2016. https://doi.org/10.1007/s00026-016-0325-x.","ieee":"T. Hibi and L. T. Solus, “Facets of the r-stable (n, k)-hypersimplex,” Annals of Combinatorics, vol. 20, no. 4. Springer, pp. 815–829, 2016.","ama":"Hibi T, Solus LT. Facets of the r-stable (n, k)-hypersimplex. Annals of Combinatorics. 2016;20(4):815-829. doi:10.1007/s00026-016-0325-x","mla":"Hibi, Takayugi, and Liam T. Solus. “Facets of the R-Stable (n, k)-Hypersimplex.” Annals of Combinatorics, vol. 20, no. 4, Springer, 2016, pp. 815–29, doi:10.1007/s00026-016-0325-x.","short":"T. Hibi, L.T. Solus, Annals of Combinatorics 20 (2016) 815–829."},"month":"12","date_created":"2018-12-11T11:50:27Z","acknowledgement":"Liam Solus was supported by a 2014 National Science Foundation/Japan Society for the Promotion of Science East Asia and Pacific Summer Institute Fellowship. \nOpen access funding provided by IST Austria."}