On the Scottish Book Problem 155 by Mazur and Sternbach
Problem 155 of the Scottish Book asks whether every bijection $U\colon X\rightarrow Y$ between two Banach spaces $X, Y$ with the property that, each point of $X$ has a neighborhood on which $U$ is isometric, is globally isometric on $X$. We prove that this is true under the additional assumption tha...
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Académie des sciences
2024-10-01
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Series: | Comptes Rendus. Mathématique |
Online Access: | https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.572/ |
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author | Mori, Michiya |
author_facet | Mori, Michiya |
author_sort | Mori, Michiya |
collection | DOAJ |
description | Problem 155 of the Scottish Book asks whether every bijection $U\colon X\rightarrow Y$ between two Banach spaces $X, Y$ with the property that, each point of $X$ has a neighborhood on which $U$ is isometric, is globally isometric on $X$. We prove that this is true under the additional assumption that $X$ is separable and the weaker assumption of surjectivity instead of bijectivity. |
format | Article |
id | doaj-art-aed774f4f3df45d29eb95cd96bff2515 |
institution | Kabale University |
issn | 1778-3569 |
language | English |
publishDate | 2024-10-01 |
publisher | Académie des sciences |
record_format | Article |
series | Comptes Rendus. Mathématique |
spelling | doaj-art-aed774f4f3df45d29eb95cd96bff25152025-02-07T11:22:49ZengAcadémie des sciencesComptes Rendus. Mathématique1778-35692024-10-01362G881381610.5802/crmath.57210.5802/crmath.572On the Scottish Book Problem 155 by Mazur and SternbachMori, Michiya0Graduate School of Mathematical Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8914, Japan; Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, JapanProblem 155 of the Scottish Book asks whether every bijection $U\colon X\rightarrow Y$ between two Banach spaces $X, Y$ with the property that, each point of $X$ has a neighborhood on which $U$ is isometric, is globally isometric on $X$. We prove that this is true under the additional assumption that $X$ is separable and the weaker assumption of surjectivity instead of bijectivity.https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.572/ |
spellingShingle | Mori, Michiya On the Scottish Book Problem 155 by Mazur and Sternbach Comptes Rendus. Mathématique |
title | On the Scottish Book Problem 155 by Mazur and Sternbach |
title_full | On the Scottish Book Problem 155 by Mazur and Sternbach |
title_fullStr | On the Scottish Book Problem 155 by Mazur and Sternbach |
title_full_unstemmed | On the Scottish Book Problem 155 by Mazur and Sternbach |
title_short | On the Scottish Book Problem 155 by Mazur and Sternbach |
title_sort | on the scottish book problem 155 by mazur and sternbach |
url | https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.572/ |
work_keys_str_mv | AT morimichiya onthescottishbookproblem155bymazurandsternbach |