User Dirk Werner

12 votes

Accepted

$C[0,1]$ is not a Grothendieck space

answered Dec 13, 2020 at 19:31

11 votes

Every mathematician has only a few tricks

answered Jun 17, 2020 at 13:02

9 votes

Nonseparable counterexamples in analysis

answered May 10, 2021 at 19:54

8 votes

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Containment of $c_0$ in projective tensor products

answered Mar 21, 2020 at 16:45

7 votes

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When does the dual to the space $K(X)$ of compact operators consist of nuclear functionals?

answered Apr 7, 2019 at 19:13

6 votes

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When is a linear subspace to be closed in all compatible topologies

answered Apr 20, 2021 at 11:36

6 votes

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Hahn-Banach smoothness of $Y^{}$ in $X^{}$

answered Feb 5, 2019 at 17:01

5 votes

Weak closure of subsets of the unitary sphere of a Banach space

answered Dec 22, 2018 at 17:54

5 votes

If $E\oplus_\phi E \cong E\oplus_\psi E,$ does it imply that $\phi= \psi$?

answered Aug 18, 2018 at 19:36

5 votes

Spectral asymptotics of normal Hilbert-Schmidt operators

answered Jun 12, 2019 at 20:25

5 votes

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A question on Grothendieck space

answered Aug 14, 2020 at 17:04

5 votes

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type and cotype of spaces of continuous functions

answered Feb 13, 2020 at 15:14

4 votes

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Does $K( (\oplus_{n=1}^{\infty}\ell^1_n)_{\ell^p})$ have the weak Phillips property?

answered Dec 12, 2021 at 11:01

4 votes

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Is the norm of the Banach space projective tensor product of finite-dimensional C-algebras a C-norm?

answered Oct 8, 2018 at 19:20

3 votes

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Centralizers and containment of $c_0$

answered Sep 2, 2018 at 18:00

3 votes

Approximation of a two-variable function by tensor products

answered Jan 15, 2019 at 21:44

3 votes

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Why ker(1) is a semi M-ideal in $\ell_1$?

answered Aug 18, 2018 at 17:54

3 votes

Prove that Cartesian composition $c_0 \times c_0$ is not isometric isomorphic

answered Dec 21, 2018 at 22:33

3 votes

Banach spaces whose biduals are $L_{1}$

answered Sep 20, 2021 at 19:00

3 votes

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Weak sequential compactness on the space of compact operators

answered Sep 25, 2020 at 13:05

3 votes

Accepted

$p$-nuclear operators from $C(K)$ to $L_{p}$

answered Jul 8, 2019 at 21:52

3 votes

Reference request for (weak*) metrizability of a bounded space of signed Radon measures on a compact set

answered Jul 16, 2019 at 17:48

3 votes

Duality mapping of Banach space of continuous functions

answered Nov 24, 2019 at 15:10

3 votes

Accepted

Absolutely summing operators from $l_{p}$ to $l_{q}$

answered Jan 14 at 20:24

3 votes

A bimonotone basis for $\mathcal{C}[0,1]$?

answered Mar 24 at 20:31

2 votes

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Finding weak LUR property of $C[0,1]$ with an equivalent norm

answered Apr 24 at 19:35

2 votes

Accepted

Limit points and Homeomorphism

answered May 8, 2021 at 17:04

2 votes

Equivalence of RKHS with high probability

answered Dec 17, 2018 at 22:33

2 votes

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An example of a measurable random process with non-measurable integral

answered Dec 21, 2018 at 20:39

2 votes

Regular Borel measures and the measure of a singleton

answered Oct 20, 2018 at 15:50

Stack Exchange Network

39 Answers

$C[0,1]$ is not a Grothendieck space

Every mathematician has only a few tricks

Nonseparable counterexamples in analysis

Containment of $c_0$ in projective tensor products

When does the dual to the space $K(X)$ of compact operators consist of nuclear functionals?

When is a linear subspace to be closed in all compatible topologies

Hahn-Banach smoothness of $Y^{}$ in $X^{}$

Weak closure of subsets of the unitary sphere of a Banach space

If $E\oplus_\phi E \cong E\oplus_\psi E,$ does it imply that $\phi= \psi$?

Spectral asymptotics of normal Hilbert-Schmidt operators

A question on Grothendieck space

type and cotype of spaces of continuous functions

Does $K( (\oplus_{n=1}^{\infty}\ell^1_n)_{\ell^p})$ have the weak Phillips property?

Is the norm of the Banach space projective tensor product of finite-dimensional C-algebras a C-norm?

Centralizers and containment of $c_0$

Approximation of a two-variable function by tensor products

Why ker(1) is a semi M-ideal in $\ell_1$?

Prove that Cartesian composition $c_0 \times c_0$ is not isometric isomorphic

Banach spaces whose biduals are $L_{1}$

Weak sequential compactness on the space of compact operators

$p$-nuclear operators from $C(K)$ to $L_{p}$

Reference request for (weak*) metrizability of a bounded space of signed Radon measures on a compact set

Duality mapping of Banach space of continuous functions

Absolutely summing operators from $l_{p}$ to $l_{q}$

A bimonotone basis for $\mathcal{C}[0,1]$?

Finding weak LUR property of $C[0,1]$ with an equivalent norm

Limit points and Homeomorphism

Equivalence of RKHS with high probability

An example of a measurable random process with non-measurable integral

Regular Borel measures and the measure of a singleton