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Vadim Alekseev's user avatar
Vadim Alekseev's user avatar
Vadim Alekseev's user avatar
Vadim Alekseev
  • Member for 14 years, 5 months
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18
Dualizing the notion of topological space
Nov 23, 2019
answer
9
Is there a gap or flaw in Lang's proof of Dirichlet's $S$-units theorem?
Dec 24, 2019
answer
9
Is there a natural topology on the automorphism group of a topological group?
Jan 8, 2022
answer
7
Commutant of the conjugations by unitary matrices
Nov 30, 2019
answer
6
Groups for which all projections of $C^*_{\text{red}}G$ belong to $\mathbb{C}G$
Dec 28, 2019
answer
3
Functional calculus for direct integrals
Feb 10, 2010
answer
3
Action of hyperbolic group on von Neumann algebra
Dec 23, 2019
answer
3
Free linear group actions on spheres with "strong" angle preservation
Dec 23, 2019
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3
Is there a reasonable notion of spectral theorem on a pre-Hilbert space?
Dec 28, 2019
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3
A certain generalization of the Poincare Bendixson theorem
Jan 1, 2020
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13
How could an underwater civilization develop electricity?
9
Magic and the Legal System
6
Why is the Plancherel measure interesting?
6
An example of group which is regularly presented, but not finitely presented
5
The world is ending, how to convince/force chosen ones to come quietly?