List questions from banach-spaces

Published on 10 Nov 2019 - 23:57

55

Views

Show that the relation $R$ is closed if and only if $R^{-1}$ is closed

Published on 27 Mar 2026 - 16:25

236

Views

Where is Axiom of Choice used in the proof of Riesz and/or Hahn-Banach extension theorems?

Published on 25 Mar 2026 - 14:35

115

Views

Spectrum of compact operator on an infinite dimensional Banach space

Published on 26 Mar 2026 - 19:00

397

Views

Definitions of projective tensor norm

Published on 14 Nov 2019 - 17:37

439

Views

About the density character and the dimension of a Banach space

Published on 29 Mar 2026 - 17:07

335

Views

Equivalent weighted L^p norms

Published on 16 Nov 2019 - 4:27

303

Views

An "almost" orthogonal vector in Banach space

Published on 16 Nov 2019 - 12:39

53

Views

Bochner integrability of $f$ and integrability of $|f|$: how are they related?

Published on 16 Nov 2019 - 13:29

40

Views

Equilateral triangle inscribed in a curve

Published on 17 Nov 2019 - 8:03

63

Views

If $\{v_n\}_{n \in \mathbb{N}}$ is a basic sequence then is $\{v_n+v_0\}_{n \in \mathbb{N}}$ a basic sequence too?

Published on 17 Nov 2019 - 11:11

83

Views

Cauchy sequence with respect to two different norms

Published on 18 Nov 2019 - 7:55

100

Views

Norm of adjoint of operator of $l_1$

Published on 27 Mar 2026 - 3:43

63

Views

Is my application of chain rule on Banach spaces correct?

Published on 29 Mar 2026 - 15:02

810

Views

Prove X is banach iff $S(0,1)$ is complete.

Published on 19 Nov 2019 - 4:10

List Question

Prove that the diagonal operator is closed

Show that the relation $R$ is closed if and only if $R^{-1}$ is closed

Where is Axiom of Choice used in the proof of Riesz and/or Hahn-Banach extension theorems?

Spectrum of compact operator on an infinite dimensional Banach space

Definitions of projective tensor norm

About the density character and the dimension of a Banach space

Equivalent weighted L^p norms

An "almost" orthogonal vector in Banach space

Bochner integrability of $f$ and integrability of $|f|$: how are they related?

Equilateral triangle inscribed in a curve

If $\{v_n\}_{n \in \mathbb{N}}$ is a basic sequence then is $\{v_n+v_0\}_{n \in \mathbb{N}}$ a basic sequence too?

Cauchy sequence with respect to two different norms

Norm of adjoint of operator of $l_1$

Is my application of chain rule on Banach spaces correct?

Prove X is banach iff $S(0,1)$ is complete.

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