Mikhail Ostrovskii

Member for 9 years, 8 months
Last seen more than a month ago

facpub.stjohns.edu/ostrovsm
New York, United States

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banach-spaces

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Answers

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23

Who proved that $l^1$ and $L^1[0,1]$ are not isomorphic?

May 4, 2016

11

Complemented subspaces constructed from finite pieces- part II

Dec 25, 2018

11

If a subspace $F$ is contained in a subspace $G$, and $H$ is close to $G$, can we choose a subspace of $H$ close to $F$?

Dec 17, 2020

10

In infinite dimensions, is it possible that convergence of distances to a sequence always implies convergence of that sequence?

Jul 24, 2020

10

Two questions about basic sequences

Apr 14, 2018

Questions

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32

Isometric embeddings of finite subsets of $\ell_2$ into infinite-dimensional Banach spaces

Oct 18, 2015

31

Do there exist infinite-dimensional Banach spaces in which every bounded linear operator attains its norm?

Feb 27, 2016

17

Large almost equilateral sets in finite-dimensional Banach spaces

Nov 26, 2014

16

Generalizing the Mazur-Ulam theorem to convex sets with empty interior in Banach spaces

Dec 8, 2015

12

Is $\ell_p$ $(1<p<\infty)$ finitely isometrically distortable?

Dec 27, 2015

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banach-spaces

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fa.functional-analysis

163

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reference-request

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mg.metric-geometry

33

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gn.general-topology

20

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4

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Nov 6, 2016
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Apr 24, 2021

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