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

Authors

  • Igor A. Vestfrid Haifa, Israel

DOI:

https://doi.org/10.3842/umzh.v76i9.8295

Keywords:

\varepsilon--isometry, isometric approximation, classical Banach spaces, stability

Abstract

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.

References

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I. A. Vestfrid, $ε$-isometries in Euclidean spaces, Nonlinear Anal., 63, 1191–1198 (2005). DOI: https://doi.org/10.1016/j.na.2005.05.036

I. A. Vestfrid, Addendum to``$ε$-Isometries in Euclidean spaces, [Nonlinear Anal., 63, 1191–1198 (2005)], Nonlinear Anal., 67, 1306–1307 (2007). DOI: https://doi.org/10.1016/j.na.2006.06.053

I. A. Vestfrid, $ε$-Isometries in $l^n_∞$, Nonlinear Funct. Anal. and Appl., 12, 433–438 (2007).

I. A. Vestfrid, $ε$-Isometries in $l^n_1$, Aequat. Math. (2024); https://doi.org/10.1007/s00010-023-01023-3. DOI: https://doi.org/10.1007/s00010-023-01023-3

Published

16.04.2025

Issue

Section

Short communications

How to Cite

Vestfrid, Igor A. “$\varepsilon$-Isometries of Convex Bodies in $l^n_\infty$ and $l^n_1$”. Ukrains’kyi Matematychnyi Zhurnal, vol. 76, no. 9, Apr. 2025, pp. 1419-23, https://doi.org/10.3842/umzh.v76i9.8295.