$\varepsilon$-Isometries of convex bodies in $l^n_\infty$ and $l^n_1$

UDC 517.5 It is shown that every $\varepsilon$-isometry of a convex body in $l^n_\infty$ or in $l^n_1$ can be well approximated by an affine surjective isometry.

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Datum:2025
1. Verfasser: Vestfrid, Igor A.
Format: Artikel
Sprache:Englisch
Veröffentlicht: Institute of Mathematics, NAS of Ukraine 2025
Online Zugang:https://umj.imath.kiev.ua/index.php/umj/article/view/8295
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Назва журналу:Ukrains’kyi Matematychnyi Zhurnal
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Ukrains’kyi Matematychnyi Zhurnal
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author Vestfrid, Igor A.
Vestfrid, Igor A.
author_facet Vestfrid, Igor A.
Vestfrid, Igor A.
author_sort Vestfrid, Igor A.
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datestamp_date 2025-04-16T12:01:19Z
description UDC 517.5 It is shown that every $\varepsilon$-isometry of a convex body in $l^n_\infty$ or in $l^n_1$ can be well approximated by an affine surjective isometry.
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spelling umjimathkievua-article-82952025-04-16T12:01:19Z $\varepsilon$-Isometries of convex bodies in $l^n_\infty$ and $l^n_1$ $\varepsilon$-Isometries of convex bodies in $l^n_\infty$ and $l^n_1$ Vestfrid, Igor A. Vestfrid, Igor A. \varepsilon--isometry, isometric approximation, classical Banach spaces, stability UDC 517.5 It is shown that every $\varepsilon$-isometry of a convex body in $l^n_\infty$ or in $l^n_1$ can be well approximated by an affine surjective isometry. УДК 517.5 $\varepsilon$-Изометрії опуклих тіл у $l^n_\infty$ і $l^n_1$ Показано, що кожна $\varepsilon$-ізометрія опуклого тіла в $l^n_\infty$ або в $l^n_1$ може бути ефективно наближена за допомогою афінної сюр'єктивної ізометрії. Institute of Mathematics, NAS of Ukraine 2025-04-16 Article Article https://umj.imath.kiev.ua/index.php/umj/article/view/8295 10.3842/umzh.v76i9.8295 Ukrains’kyi Matematychnyi Zhurnal; Vol. 76 No. 9 (2024); 1419 - 1423 Український математичний журнал; Том 76 № 9 (2024); 1419 - 1423 1027-3190 en https://umj.imath.kiev.ua/index.php/umj/article/view/8295/10171 Copyright (c) 2024 Igor A. Vestfrid
spellingShingle Vestfrid, Igor A.
Vestfrid, Igor A.
$\varepsilon$-Isometries of convex bodies in $l^n_\infty$ and $l^n_1$
title $\varepsilon$-Isometries of convex bodies in $l^n_\infty$ and $l^n_1$
title_alt $\varepsilon$-Isometries of convex bodies in $l^n_\infty$ and $l^n_1$
title_full $\varepsilon$-Isometries of convex bodies in $l^n_\infty$ and $l^n_1$
title_fullStr $\varepsilon$-Isometries of convex bodies in $l^n_\infty$ and $l^n_1$
title_full_unstemmed $\varepsilon$-Isometries of convex bodies in $l^n_\infty$ and $l^n_1$
title_short $\varepsilon$-Isometries of convex bodies in $l^n_\infty$ and $l^n_1$
title_sort $\varepsilon$-isometries of convex bodies in $l^n_\infty$ and $l^n_1$
topic_facet \varepsilon--isometry
isometric approximation
classical Banach spaces
stability
url https://umj.imath.kiev.ua/index.php/umj/article/view/8295
work_keys_str_mv AT vestfridigora varepsilonisometriesofconvexbodiesinlninftyandln1
AT vestfridigora varepsilonisometriesofconvexbodiesinlninftyandln1