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user92646
  • Member for 10 years, 10 months
  • Last seen more than a week ago
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7
The bound of Fourier series coefficients
Jul 2, 2018
5
Projections in atomless von Neumann algebras
Nov 10, 2023
4
A counter example of best approximation
Sep 2, 2013
4
Every surjective isometry on a Hilbert space is indeed a unitary operator
May 20, 2019
3
$(AB)^p =A^p B^p$?
Nov 21, 2017
3
How to prove $\|P|X|^\theta\|_{p/\theta} \le \|P|X|\|_p^{\theta}$
Mar 6, 2018
3
Find a positive number $C$ such that $f(s)<C\cdot g(s/C)$ for all $s$
Aug 6, 2017
3
a polynomial about continuous function
Mar 27, 2014
3
If $\tau(\sum P_i) =\infty$, can we find a sequence of projections $\{Q_n\}$ from $\{P_i\}$ such that $\tau(\sum Q_n) =\infty$?
Mar 29, 2017
3
continuous and sequentially continuous
Jul 20, 2016
Top network posts
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20
What can I do if I don’t completely understand a paper?
10
Tensor product of a von Neumann algebra and $L_\infty $
5
von Neumann subalgebra having separable predual
5
Projections in atomless von Neumann algebras