List questions from banach-spaces

Published on 29 Mar 2026 - 5:11

604

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A question concerning Mazur's Lemma

Published on 04 Apr 2026 - 20:20

30

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$\bigcap_{S \in L(E,F)} ker(S) = \{0\}$

Published on 16 Apr 2026 - 3:36

257

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Sequences - Convolution

Published on 15 Apr 2026 - 23:53

5.9k

Views

Sum of closed spaces is not closed

Published on 13 Apr 2026 - 5:05

41

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am I misunderstanding boundness of a transformation?

Published on 08 Apr 2026 - 22:26

135

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Question related to differentiable functions on Banach spaces

Published on 26 Mar 2026 - 23:09

273

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Is $C^\omega([0,1])$ normable? (And about the growth of coefficients of infinitely differentiable functions)

Published on 12 Apr 2026 - 0:49

1.9k

Views

What is Convex about Locally Convex Spaces?

Published on 27 Mar 2026 - 4:56

669

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In a proof of the completeness of $L^\infty$

Published on 11 Apr 2026 - 14:33

1.1k

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In Rudin's proof of the completeness of $L^\infty$

Published on 10 Apr 2026 - 2:13

218

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How to show $\sigma(T_q) = \overline{\{q(t) : t \in [0,1]\}}$ where $T_q$ is the multiplication operator?

Published on 29 Mar 2026 - 7:29

87

Views

About isometry on Banach spaces

Published on 12 Apr 2026 - 15:57

106

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Projective tensor product continuous?

Published on 10 Apr 2026 - 21:02

486

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If a linear map $T:X^\to X^$ is norm-norm continuous, is it weak-star - weak-star continuous?

Published on 12 Apr 2026 - 9:52

List Question

The space $C_0$ does not have a 2-dimensional subspace isometric to $E^2$?

A question concerning Mazur's Lemma

$\bigcap_{S \in L(E,F)} ker(S) = \{0\}$

Sequences - Convolution

Sum of closed spaces is not closed

am I misunderstanding boundness of a transformation?

Question related to differentiable functions on Banach spaces

Is $C^\omega([0,1])$ normable? (And about the growth of coefficients of infinitely differentiable functions)

What is Convex about Locally Convex Spaces?

In a proof of the completeness of $L^\infty$

In Rudin's proof of the completeness of $L^\infty$

How to show $\sigma(T_q) = \overline{\{q(t) : t \in [0,1]\}}$ where $T_q$ is the multiplication operator?

About isometry on Banach spaces

Projective tensor product continuous?

If a linear map $T:X^\to X^$ is norm-norm continuous, is it weak-star - weak-star continuous?

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