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M.González
Santander, Spain
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Top Questions
14
votes
Quotients of $\ell_\infty$ by separable subspaces
fa.functional-analysis
banach-spaces
asked Nov 15, 2013 at 7:50
mathoverflow.net
12
votes
Is there a Gelfand-Naimark-like characterization of group algebras $L_1(G)$?
fa.functional-analysis
banach-spaces
banach-algebras
convolution
asked Sep 15, 2015 at 15:36
mathoverflow.net
12
votes
Banach spaces $X$ with $\ell_2(X)$ not isomorphic to $L_2([0,1],X)$
reference-request
fa.functional-analysis
banach-spaces
asked Dec 2, 2015 at 10:41
mathoverflow.net
11
votes
Complemented subspaces in the dual of James' space $J$
fa.functional-analysis
banach-spaces
asked Jan 14, 2016 at 16:33
mathoverflow.net
11
votes
Bounded operator on a normed space with empty spectrum
fa.functional-analysis
sp.spectral-theory
asked Nov 28, 2014 at 10:33
mathoverflow.net
11
votes
Subspaces and quotients in Banach space theory
fa.functional-analysis
banach-spaces
asked Jun 12, 2015 at 10:36
mathoverflow.net
9
votes
Counterintuitive consequences of the Hahn-Banach theorem
fa.functional-analysis
banach-spaces
asked Nov 5, 2014 at 16:21
mathoverflow.net
9
votes
On hereditarily reflexive Banach spaces
fa.functional-analysis
banach-spaces
asked Jul 13, 2020 at 17:57
mathoverflow.net
8
votes
Ultrapowers of Banach spaces without the continuum hypothesis
fa.functional-analysis
banach-spaces
continuum-hypothesis
asked Oct 10, 2013 at 7:08
mathoverflow.net
8
votes
On the classification of injective Banach spaces
reference-request
fa.functional-analysis
banach-spaces
asked Feb 6, 2014 at 16:12
mathoverflow.net
1
2
3
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Top Answers
12
When is the closed unit ball in a smaller Banach space closed in a larger Banach space?
mathoverflow.net
12
Injectivity implies surjectivity
mathoverflow.net
11
Weakly compact operators between Banach spaces
mathoverflow.net
10
Ideal of strictly singular operators
mathoverflow.net
9
Existence of operator with certain properties
mathoverflow.net
7
For which $f \in L^2([0,1])$ is $f^\perp \cap C^\infty$ dense in $f^\perp$?
mathoverflow.net
7
reflexive banach space
mathoverflow.net
7
Are nuclear operators closed under extensions?
mathoverflow.net
6
On hereditarily reflexive Banach spaces
mathoverflow.net
5
When is it $C(X)$?
mathoverflow.net
5
Is $\beta \mathbb{N}$ homeomorphic to its own square?
mathoverflow.net
5
Concrete example of non-norm-attaining bounded linear operator on disc algebra
mathoverflow.net
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