List questions from banach-spaces

Published on 13 Dec 2018 - 9:27

58

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Limit of non-degenerate biliniear forms

Published on 25 Mar 2026 - 7:43

685

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Dual spaces of uniformly convex Banach spaces

Published on 16 Dec 2018 - 12:54

163

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Prove or disprove that $W$ is a Banach space.

Published on 16 Dec 2018 - 13:33

59

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Banach spaces $X,Y$ and a mapping $f:X\to Y$

Published on 17 Dec 2018 - 7:40

77

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is this set invariant under a operator?

Published on 26 Mar 2026 - 6:27

5k

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Proving that $B(X,Y) $ is a Banach Space if $Y$ is.

Published on 18 Dec 2018 - 13:18

73

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Point-wise convergence but not weakly

Published on 23 Feb 2026 - 1:02

166

Views

Explanation of proof that $c_{0}$ doesn't complemented in $l^{\infty}$

Published on 19 Dec 2018 - 22:37

64

Views

Prove that $S_{n} : X \to X$ is continuous mapping.

Published on 20 Dec 2018 - 17:45

668

Views

Kernel of adjoint and cokernel of operator

Published on 26 Mar 2026 - 12:35

106

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If for some $n\in\mathbb{N}$, $T^{n+1}\left( X\right) =T^{n}\left( X\right)$ do we have $T^{n}\left(X\right) $ closed?

Published on 23 Dec 2018 - 22:10

63

Views

There exists a point with a bigger distance from a point than a compact

Published on 23 Dec 2018 - 23:09

335

Views

Extending an inner product to the completion?

Published on 23 Dec 2018 - 23:47

335

Views

Is the closure of the span equal to the span of union closed spaces?

Published on 27 Dec 2018 - 12:06

List Question

Space of sequences such thtat $\sum_{n=0}^{\infty}2^n|a_n|<+\infty$

Limit of non-degenerate biliniear forms

Dual spaces of uniformly convex Banach spaces

Prove or disprove that $W$ is a Banach space.

Banach spaces $X,Y$ and a mapping $f:X\to Y$

is this set invariant under a operator?

Proving that $B(X,Y) $ is a Banach Space if $Y$ is.

Point-wise convergence but not weakly

Explanation of proof that $c_{0}$ doesn't complemented in $l^{\infty}$

Prove that $S_{n} : X \to X$ is continuous mapping.

Kernel of adjoint and cokernel of operator

If for some $n\in\mathbb{N}$, $T^{n+1}\left( X\right) =T^{n}\left( X\right)$ do we have $T^{n}\left(X\right) $ closed?

There exists a point with a bigger distance from a point than a compact

Extending an inner product to the completion?

Is the closure of the span equal to the span of union closed spaces?

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