Question

Is the Unit ball of $X^{**} $ weak*- sequentially compact?

score 98 · Answer 1 · 2026-03-22 18:37:21

98

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Is the Unit ball of $X^{**} $ weak*- sequentially compact?

Published on 22 Mar 2026 - 18:37

score 91 · Answer 2 · 2026-03-25 04:41:35

91

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Generalizing the estimate of norm of solution of an ODE to Banach spaces

Published on 25 Mar 2026 - 4:41

score 458 · Answer 3 · 2018-05-08 20:52:30

458

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Application of the open mapping theorem Brezis exercise 2.12

Published on 08 May 2018 - 20:52

score 188 · Answer 4 · 2026-03-25 07:42:35

188

Views

Grassmann manifold (example Abraham, Marsden, Ratiu book)

Published on 25 Mar 2026 - 7:42

score 67 · Answer 5 · 2018-05-09 18:28:34

67

Views

A Proposition on the Banach space

Published on 09 May 2018 - 18:28

score 22 · Answer 6 · 2018-05-10 15:07:19

22

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How did Behrend obtain $R_\lambda(x) = \text{co}\{-\lambda x,+\lambda x\}$ in his $M$-structure lecture notes?

Published on 10 May 2018 - 15:07

score 52 · Answer 7 · 2018-05-10 18:05:39

52

Views

Some questions on the proof of Hahn-Banach Theorem.

Published on 10 May 2018 - 18:05

score 283 · Answer 8 · 2026-03-25 09:27:24

283

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Is there a relation between derivative of a smooth path and the signature?

Published on 25 Mar 2026 - 9:27

score 134 · Answer 9 · 2018-05-10 22:52:32

134

Views

Properties of measurable functions on Banach spaces?

Published on 10 May 2018 - 22:52

score 72 · Answer 10 · 2018-05-11 02:20:54

72

Views

Representation of linear operator

Published on 11 May 2018 - 2:20

score 252 · Answer 11 · 2018-05-11 15:04:47

252

Views

How to prove Hahn-Banach separation theorem for $X^*\times \mathbb{R}$ version?

Published on 11 May 2018 - 15:04

score 128 · Answer 12 · 2018-05-12 05:47:41

128

Views

Show that multiplication operator $M_h$ is $M$-bounded

Published on 12 May 2018 - 5:47

score 357 · Answer 13 · 2018-05-12 17:29:56

357

Views

$E$ and $F$ Banach Spaces, $T:E\to F$ such that $\text{Im }T$ is closed. Then $\text{Im } T^{\ast }=\text{ann }\left ( \ker T \right )$

Published on 12 May 2018 - 17:29

score 46 · Answer 14 · 2018-05-12 21:39:25

46

Views

If $E$ is a Banach space and $S\subset E^{\ast}$ is $w^{\ast}$-closed, then $S=\text{ann }(S_0)$ for some $S_0\subset E$

Published on 12 May 2018 - 21:39

score 592 · Answer 15 · 2018-05-13 16:04:45

592

Views

Subspace of convergent sequences in $l^{\infty}$: Some computations

Published on 13 May 2018 - 16:04

List Question

Is the Unit ball of $X^{**} $ weak*- sequentially compact?

Generalizing the estimate of norm of solution of an ODE to Banach spaces

Application of the open mapping theorem Brezis exercise 2.12

Grassmann manifold (example Abraham, Marsden, Ratiu book)

A Proposition on the Banach space

How did Behrend obtain $R_\lambda(x) = \text{co}\{-\lambda x,+\lambda x\}$ in his $M$-structure lecture notes?

Some questions on the proof of Hahn-Banach Theorem.

Is there a relation between derivative of a smooth path and the signature?

Properties of measurable functions on Banach spaces?

Representation of linear operator

How to prove Hahn-Banach separation theorem for $X^*\times \mathbb{R}$ version?

Show that multiplication operator $M_h$ is $M$-bounded

$E$ and $F$ Banach Spaces, $T:E\to F$ such that $\text{Im }T$ is closed. Then $\text{Im } T^{\ast }=\text{ann }\left ( \ker T \right )$

If $E$ is a Banach space and $S\subset E^{\ast}$ is $w^{\ast}$-closed, then $S=\text{ann }(S_0)$ for some $S_0\subset E$

Subspace of convergent sequences in $l^{\infty}$: Some computations

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