Question

2 matrix norm greater than maximum absolute value

score 186 · Answer 1 · 2018-05-15 14:47:30

186

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2 matrix norm greater than maximum absolute value

Published on 15 May 2018 - 14:47

score 213 · Answer 2 · 2018-05-15 22:02:38

213

Views

Norm of a functional in finite-dimensional space

Published on 15 May 2018 - 22:02

score 33 · Answer 3 · 2018-05-16 02:21:28

33

Views

$||*||_p$ p-Norm for Vector That is Not in $R^n$

Published on 16 May 2018 - 2:21

score 118 · Answer 4 · 2018-05-16 23:27:52

118

Views

Is this inequality on Schatten p-norm $\|AB\|_{S_p} \le \|A\|_{S_p}\|B\|_{S_p}$ true?

Published on 16 May 2018 - 23:27

score 72 · Answer 5 · 2018-05-17 13:44:48

72

Views

What are the semi-norms on $M_n(\mathbb C)$ such that $\| AB\| = \| BA\|$, for all $A$ and $B$?

Published on 17 May 2018 - 13:44

score 27 · Answer 6 · 2018-05-17 15:40:34

27

Views

Let $A$ be a non-empty compact set in a normed space $E$. Prove that there exists a finite or countable subset of $A$ which is dense in $A$.

Published on 17 May 2018 - 15:40

score 50 · Answer 7 · 2026-03-25 04:35:51

50

Views

Eulerian directed graphs $2$-norm is 1

Published on 25 Mar 2026 - 4:35

score 63 · Answer 8 · 2026-03-26 14:34:00

63

Views

Necessary and Sufficient Condition in Quotient Space

Published on 26 Mar 2026 - 14:34

score 126 · Answer 9 · 2018-05-18 14:06:25

126

Views

Showing that $a_n \in \ell^{\infty}$

Published on 18 May 2018 - 14:06

score 573 · Answer 10 · 2026-03-25 04:59:50

573

Views

How to show the dual map of an isometric isomorphism is an isometric isomorphism?

Published on 25 Mar 2026 - 4:59

score 129 · Answer 11 · 2026-03-25 12:48:32

129

Views

Ergodic theory regarding positive contraction operators on $L^1$

Published on 25 Mar 2026 - 12:48

score 48 · Answer 12 · 2018-05-19 11:36:24

48

Views

There is some sequence $x_n$ in $C[a,b]$ such that $\|x_n\| =1$ but $x_n(t)$ tends to $0$ for all t $\in [a,b] $.

Published on 19 May 2018 - 11:36

score 653 · Answer 13 · 2026-03-26 01:03:22

653

Views

Example of a matrix where $\rho(A)<\|A\|_p$

Published on 26 Mar 2026 - 1:03

score 684 · Answer 14 · 2026-03-26 06:34:16

684

Views

Space of Linear and Bounded Operators is a Banach Space

Published on 26 Mar 2026 - 6:34

score 239 · Answer 15 · 2026-03-25 07:43:11

239

Views

Reference request: Locally convex space is Hausdorff if and only if ...

Published on 25 Mar 2026 - 7:43

List Question

2 matrix norm greater than maximum absolute value

Norm of a functional in finite-dimensional space

$||*||_p$ p-Norm for Vector That is Not in $R^n$

Is this inequality on Schatten p-norm $\|AB\|_{S_p} \le \|A\|_{S_p}\|B\|_{S_p}$ true?

What are the semi-norms on $M_n(\mathbb C)$ such that $\| AB\| = \| BA\|$, for all $A$ and $B$?

Let $A$ be a non-empty compact set in a normed space $E$. Prove that there exists a finite or countable subset of $A$ which is dense in $A$.

Eulerian directed graphs $2$-norm is 1

Necessary and Sufficient Condition in Quotient Space

Showing that $a_n \in \ell^{\infty}$

How to show the dual map of an isometric isomorphism is an isometric isomorphism?

Ergodic theory regarding positive contraction operators on $L^1$

There is some sequence $x_n$ in $C[a,b]$ such that $\|x_n\| =1$ but $x_n(t)$ tends to $0$ for all t $\in [a,b] $.

Example of a matrix where $\rho(A)<\|A\|_p$

Space of Linear and Bounded Operators is a Banach Space

Reference request: Locally convex space is Hausdorff if and only if ...

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