Narutaka OZAWA's user avatar
Narutaka OZAWA's user avatar
Narutaka OZAWA's user avatar
Narutaka OZAWA
  • Member for 13 years, 9 months
  • Last seen this week
5 votes
0 answers
235 views

On the weighted Hilbert inequality a la Montgomery and Vaughan

101 votes
4 answers
5k views

How feasible is it to prove Kazhdan's property (T) by a computer?

8 votes
0 answers
195 views

Coarse quotient maps

6 votes
1 answer
293 views

Trans-amenability of group actions

8 votes
0 answers
163 views

Uniform amenability at infinity

87 votes
1 answer
9k views

Non-amenable groups with arbitrarily large Tarski number?

29 votes
2 answers
2k views

Is every maximal ideal in a C*-algebra always closed?

4 votes
0 answers
181 views

Shannon-McMillan-Breiman theorem for expander graphs: rate of convergence?

10 votes
1 answer
437 views

A small corner w.r.t. a masa in a von Neumann algebra

14 votes
0 answers
496 views

On uniform Kazhdan's property (T)

18 votes
0 answers
700 views

An "exercise" on von Neumann algebra tensor product

17 votes
1 answer
783 views

Operator Valued Kadison--Singer Problem

31 votes
1 answer
2k views

Szőkefalvi-Nagy's unitarizability theorem in the Calkin algebra?