{"acknowledgement":"Theorem 2 was obtained at Steklov Mathematical Institute RAS and supported by Russian Science Foundation, grant N 19-11-00087.","isi":1,"year":"2021","citation":{"short":"G. Ivanov, M.S. Lopushanski, Set-Valued and Variational Analysis (2021).","ama":"Ivanov G, Lopushanski MS. Rectifiable curves in proximally smooth sets. <i>Set-Valued and Variational Analysis</i>. 2021. doi:<a href=\"https://doi.org/10.1007/s11228-021-00612-1\">10.1007/s11228-021-00612-1</a>","chicago":"Ivanov, Grigory, and Mariana S. Lopushanski. “Rectifiable Curves in Proximally Smooth Sets.” <i>Set-Valued and Variational Analysis</i>. Springer Nature, 2021. <a href=\"https://doi.org/10.1007/s11228-021-00612-1\">https://doi.org/10.1007/s11228-021-00612-1</a>.","ista":"Ivanov G, Lopushanski MS. 2021. Rectifiable curves in proximally smooth sets. Set-Valued and Variational Analysis.","apa":"Ivanov, G., &#38; Lopushanski, M. S. (2021). Rectifiable curves in proximally smooth sets. <i>Set-Valued and Variational Analysis</i>. Springer Nature. <a href=\"https://doi.org/10.1007/s11228-021-00612-1\">https://doi.org/10.1007/s11228-021-00612-1</a>","ieee":"G. Ivanov and M. S. Lopushanski, “Rectifiable curves in proximally smooth sets,” <i>Set-Valued and Variational Analysis</i>. Springer Nature, 2021.","mla":"Ivanov, Grigory, and Mariana S. Lopushanski. “Rectifiable Curves in Proximally Smooth Sets.” <i>Set-Valued and Variational Analysis</i>, Springer Nature, 2021, doi:<a href=\"https://doi.org/10.1007/s11228-021-00612-1\">10.1007/s11228-021-00612-1</a>."},"article_type":"original","language":[{"iso":"eng"}],"_id":"10181","doi":"10.1007/s11228-021-00612-1","author":[{"first_name":"Grigory","last_name":"Ivanov","id":"87744F66-5C6F-11EA-AFE0-D16B3DDC885E","full_name":"Ivanov, Grigory"},{"first_name":"Mariana S.","last_name":"Lopushanski","full_name":"Lopushanski, Mariana S."}],"publication":"Set-Valued and Variational Analysis","publication_identifier":{"issn":["0927-6947"],"eissn":["1877-0541"]},"external_id":{"arxiv":["2012.10691"],"isi":["000705774800001"]},"status":"public","quality_controlled":"1","title":"Rectifiable curves in proximally smooth sets","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","date_created":"2021-10-24T22:01:35Z","oa":1,"oa_version":"Published Version","scopus_import":"1","publisher":"Springer Nature","date_published":"2021-10-09T00:00:00Z","publication_status":"published","main_file_link":[{"url":"https://arxiv.org/abs/2012.10691","open_access":"1"}],"abstract":[{"lang":"eng","text":"In this article we study some geometric properties of proximally smooth sets. First, we introduce a modification of the metric projection and prove its existence. Then we provide an algorithm for constructing a rectifiable curve between two sufficiently close points of a proximally smooth set in a uniformly convex and uniformly smooth Banach space, with the moduli of smoothness and convexity of power type. Our algorithm returns a reasonably short curve between two sufficiently close points of a proximally smooth set, is iterative and uses our modification of the metric projection. We estimate the length of the constructed curve and its deviation from the segment with the same endpoints. These estimates coincide up to a constant factor with those for the geodesics in a proximally smooth set in a Hilbert space."}],"department":[{"_id":"UlWa"}],"day":"09","type":"journal_article","date_updated":"2023-08-14T08:11:38Z","month":"10","article_processing_charge":"No"}