Question

Cauchy Schwarz inequality and absolute value

score 702 · Answer 1 · 2026-04-05 18:36:22

702

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Cauchy Schwarz inequality and absolute value

Published on 05 Apr 2026 - 18:36

score 601 · Answer 2 · 2026-04-01 20:54:52

601

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Max norm of product normes spaces

Published on 01 Apr 2026 - 20:54

score 350 · Answer 3 · 2014-12-25 16:01:49

350

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How can I calculate the norm of this linear functional on $\mathbb R^3$

Published on 25 Dec 2014 - 16:01

score 753 · Answer 4 · 2026-03-25 03:03:04

753

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How is the nuclear norm convex whereas the weighted nuclear norm is not?

Published on 25 Mar 2026 - 3:03

score 413 · Answer 5 · 2014-12-26 23:28:07

413

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In finite dimensional normed space, every convex set contains a basis

Published on 26 Dec 2014 - 23:28

score 169 · Answer 6 · 2026-04-01 22:36:18

169

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Gelfand width of $l_1$ unit ball in $\infty$ metric

Published on 01 Apr 2026 - 22:36

score 51 · Answer 7 · 2014-12-27 14:27:47

51

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Functional Analysis proof help involving decreasing sequence of sets in a finite dimensional normed space

Published on 27 Dec 2014 - 14:27

score 399 · Answer 8 · 2014-12-28 08:53:55

399

Views

Erwin Kreyszig Section 2.8, Problem 2: What is the norm of these two functionals?

Published on 28 Dec 2014 - 8:53

score 651 · Answer 9 · 2014-12-28 09:23:40

651

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Erwin Kreyszig's Introductory Functional Analysis With Applications, Section 2.8, Problem 3: What is the norm of this functional?

Published on 28 Dec 2014 - 9:23

score 1k · Answer 10 · 2014-12-28 11:13:42

1k

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Erwin Kreyszig's Introductory Functional Analysis With Applications, Section 2.8, Problem 4: How to show boundedness?

Published on 28 Dec 2014 - 11:13

score 39 · Answer 11 · 2026-04-05 18:39:48

39

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what is an example of a normed space such that $||\sum x_i||=\sum ||x_i||$ does not imply they have the same direction?

Published on 05 Apr 2026 - 18:39

score 73 · Answer 12 · 2014-12-29 15:02:58

73

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Prove $ \lim_{n\to+\infty}\int^{-\alpha}_{-1}|f_n(t)+1|dt=0$

Published on 29 Dec 2014 - 15:02

score 125 · Answer 13 · 2014-12-29 17:01:48

125

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Reference for an inequality between $|x+y|^p$, $|x|^p$, $|y|^p$, and $|x-y|^p$

Published on 29 Dec 2014 - 17:01

score 1.4k · Answer 14 · 2014-12-30 15:52:57

1.4k

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Isometry of a complete normed space is also complete.

Published on 30 Dec 2014 - 15:52

score 387 · Answer 15 · 2015-01-01 23:24:01

387

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Extreme points of complex sphere of dimension n in 1-norm.

Published on 01 Jan 2015 - 23:24

List Question

Cauchy Schwarz inequality and absolute value

Max norm of product normes spaces

How can I calculate the norm of this linear functional on $\mathbb R^3$

How is the nuclear norm convex whereas the weighted nuclear norm is not?

In finite dimensional normed space, every convex set contains a basis

Gelfand width of $l_1$ unit ball in $\infty$ metric

Functional Analysis proof help involving decreasing sequence of sets in a finite dimensional normed space

Erwin Kreyszig Section 2.8, Problem 2: What is the norm of these two functionals?

Erwin Kreyszig's Introductory Functional Analysis With Applications, Section 2.8, Problem 3: What is the norm of this functional?

Erwin Kreyszig's Introductory Functional Analysis With Applications, Section 2.8, Problem 4: How to show boundedness?

what is an example of a normed space such that $||\sum x_i||=\sum ||x_i||$ does not imply they have the same direction?

Prove $ \lim_{n\to+\infty}\int^{-\alpha}_{-1}|f_n(t)+1|dt=0$

Reference for an inequality between $|x+y|^p$, $|x|^p$, $|y|^p$, and $|x-y|^p$

Isometry of a complete normed space is also complete.

Extreme points of complex sphere of dimension n in 1-norm.

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