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Mikhail Ostrovskii's user avatar
Mikhail Ostrovskii's user avatar
Mikhail Ostrovskii's user avatar
Mikhail Ostrovskii
  • Member for 11 years, 1 month
  • Last seen more than 7 years ago
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I think that MathOverflow is a very interesting and useful web site. I try to answer those questions which I can answer without devoting to this significant time. Exceptions are given to those questions which I consider as interesting research problems.

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How to discourage excessive self-edits?
Feb 27, 2016
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32
Isometric embeddings of finite subsets of $\ell_2$ into infinite-dimensional Banach spaces
31
Do there exist infinite-dimensional Banach spaces in which every bounded linear operator attains its norm?
23
Who proved that $l^1$ and $L^1[0,1]$ are not isomorphic?
17
Large almost equilateral sets in finite-dimensional Banach spaces
16
Generalizing the Mazur-Ulam theorem to convex sets with empty interior in Banach spaces