Question

$R^2$ with $n$ points removed is a bouquet of $n$ circles

score 1.3k · Answer 1 · 2026-04-12 03:22:49

1.3k

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$R^2$ with $n$ points removed is a bouquet of $n$ circles

Published on 12 Apr 2026 - 3:22

score 195 · Answer 2 · 2026-03-26 17:28:30

195

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Book recommendation: Functional Analysis for Graphs

Published on 26 Mar 2026 - 17:28

score 48 · Answer 3 · 2026-04-14 16:42:35

48

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Ref Request: Geometric Du-Bois Raymond Lemma

Published on 14 Apr 2026 - 16:42

score 31 · Answer 4 · 2026-04-11 19:45:27

31

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How are conformal maps useful in Euclidean geometry?

Published on 11 Apr 2026 - 19:45

score 67 · Answer 5 · 2026-04-12 15:12:30

67

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Reference request:classical theory of curves and surfaces in the language of manifolds.

Published on 12 Apr 2026 - 15:12

score 84 · Answer 6 · 2026-03-26 06:21:21

84

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For $B$ positive semi-definite matrix find $z\ge0$ with $Bz\ge0$

Published on 26 Mar 2026 - 6:21

score 252 · Answer 7 · 2026-04-14 11:23:27

252

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Looking for a differential equations book that explains the ideas and common techniques well

Published on 14 Apr 2026 - 11:23

score 62 · Answer 8 · 2026-04-15 10:39:41

62

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Looking for good book similar Stability/Conditioning in Numerical Linear Algebra

Published on 15 Apr 2026 - 10:39

score 141 · Answer 9 · 2026-04-17 13:03:37

141

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Lindquist Identity:$\big(|b|^{p-2}b-|a|^{p-2}a\big)(b-a)=\frac{|b|^{p-2}+|a|^{p-2}}{2}|b-a|^2+\frac{1}{2}\big(|b|^{p-2}-|a|^{p-2}\big)(|b|^2-|a|^2)$

Published on 17 Apr 2026 - 13:03

score 237 · Answer 10 · 2026-05-10 18:30:34

237

Views

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

Published on 10 May 2026 - 18:30

score 45 · Answer 11 · 2026-03-30 02:03:54

45

Views

Mathematical expectation for learning theory

Published on 30 Mar 2026 - 2:03

score 66 · Answer 12 · 2026-04-16 01:46:07

66

Views

Looking for a citation for a result of Littlewood

Published on 16 Apr 2026 - 1:46

score 46 · Answer 13 · 2026-04-12 06:22:45

46

Views

Study materials for cardinals and ω_1 / continuum hypothesis

Published on 12 Apr 2026 - 6:22

score 374 · Answer 14 · 2026-04-15 19:16:32

374

Views

Reference: Derivations on the $(2n+1)$-dimensional Heisenberg algebra

Published on 15 Apr 2026 - 19:16

score 45 · Answer 15 · 2026-05-11 09:15:23

45

Views

Where can I find the English translation of some well-known-papers in different braches of mathematics.

Published on 11 May 2026 - 9:15

List Question

$R^2$ with $n$ points removed is a bouquet of $n$ circles

Book recommendation: Functional Analysis for Graphs

Ref Request: Geometric Du-Bois Raymond Lemma

How are conformal maps useful in Euclidean geometry?

Reference request:classical theory of curves and surfaces in the language of manifolds.

For $B$ positive semi-definite matrix find $z\ge0$ with $Bz\ge0$

Looking for a differential equations book that explains the ideas and common techniques well

Looking for good book similar Stability/Conditioning in Numerical Linear Algebra

Lindquist Identity:$\big(|b|^{p-2}b-|a|^{p-2}a\big)(b-a)=\frac{|b|^{p-2}+|a|^{p-2}}{2}|b-a|^2+\frac{1}{2}\big(|b|^{p-2}-|a|^{p-2}\big)(|b|^2-|a|^2)$

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

Mathematical expectation for learning theory

Looking for a citation for a result of Littlewood

Study materials for cardinals and ω_1 / continuum hypothesis

Reference: Derivations on the $(2n+1)$-dimensional Heisenberg algebra

Where can I find the English translation of some well-known-papers in different braches of mathematics.

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