Question

Concentration: lower bound for $\sup_u \mu(\{a + \epsilon u \mid a \in A\})$, where the sup is over unit vectors $u \in \mathbb R^n$

score 49 · Answer 1 · 2026-02-23 12:14:49

49

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Concentration: lower bound for $\sup_u \mu(\{a + \epsilon u \mid a \in A\})$, where the sup is over unit vectors $u \in \mathbb R^n$

Published on 23 Feb 2026 - 12:14

score 644 · Answer 2 · 2020-06-04 01:05:40

644

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Derivative of double centered Euclidean distance matrix

Published on 04 Jun 2020 - 1:05

score 60 · Answer 3 · 2020-06-06 20:02:13

60

Views

Ordered field in convex subset definition

Published on 06 Jun 2020 - 20:02

score 228 · Answer 4 · 2020-06-10 13:31:07

228

Views

Volume / measure of Minkowski sum $C+C$ (e.g. if $C$ is star-shaped)

Published on 10 Jun 2020 - 13:31

score 57 · Answer 5 · 2020-06-12 16:19:59

57

Views

How to solve the following challenging optimization problem?

Published on 12 Jun 2020 - 16:19

score 158 · Answer 6 · 2026-03-26 06:21:24

158

Views

For $W=\cup_{U\in\mathcal U} U$ show that there exists $U_1,\dots,U_n: \ \sum_{i=1}^n \lambda(U_i) > \frac{1 - \epsilon}{3^d}\lambda(W)$

Published on 26 Mar 2026 - 6:21

score 64 · Answer 7 · 2026-03-25 16:06:00

64

Views

How trivial is this? (Reference Request)

Published on 25 Mar 2026 - 16:06

score 24 · Answer 8 · 2020-06-15 17:58:47

24

Views

would polynomial "stretching" of a compact convex set still be compact convex?

Published on 15 Jun 2020 - 17:58

score 32 · Answer 9 · 2020-06-17 05:48:51

32

Views

If a convex combination of conformal matrices is conformal, are they all proportional?

Published on 17 Jun 2020 - 5:48

score 153 · Answer 10 · 2020-06-18 21:45:01

153

Views

'Shrunken Version' of a convex set is also convex

Published on 18 Jun 2020 - 21:45

score 101 · Answer 11 · 2020-06-21 05:48:19

101

Views

lift of the boundary of the projection of a convex body

Published on 21 Jun 2020 - 5:48

score 178 · Answer 12 · 2020-06-21 15:35:22

178

Views

Is Inverse Cartesian product of convex set still convex?

Published on 21 Jun 2020 - 15:35

score 517 · Answer 13 · 2026-03-25 16:08:21

517

Views

Can the convex hull be characterised as an intersection of half-spaces?

Published on 25 Mar 2026 - 16:08

score 236 · Answer 14 · 2026-03-26 11:02:16

236

Views

How do dihedral angles grow with number of edges in Euclidean polyhedra?

Published on 26 Mar 2026 - 11:02

score 47 · Answer 15 · 2020-06-24 17:57:19

47

Views

What’s the name for component constraint for compact convex set Cartesian products? And is the subset still convex?

Published on 24 Jun 2020 - 17:57

List Question

Concentration: lower bound for $\sup_u \mu(\{a + \epsilon u \mid a \in A\})$, where the sup is over unit vectors $u \in \mathbb R^n$

Derivative of double centered Euclidean distance matrix

Ordered field in convex subset definition

Volume / measure of Minkowski sum $C+C$ (e.g. if $C$ is star-shaped)

How to solve the following challenging optimization problem?

For $W=\cup_{U\in\mathcal U} U$ show that there exists $U_1,\dots,U_n: \ \sum_{i=1}^n \lambda(U_i) > \frac{1 - \epsilon}{3^d}\lambda(W)$

How trivial is this? (Reference Request)

would polynomial "stretching" of a compact convex set still be compact convex?

If a convex combination of conformal matrices is conformal, are they all proportional?

'Shrunken Version' of a convex set is also convex

lift of the boundary of the projection of a convex body

Is Inverse Cartesian product of convex set still convex?

Can the convex hull be characterised as an intersection of half-spaces?

How do dihedral angles grow with number of edges in Euclidean polyhedra?

What’s the name for component constraint for compact convex set Cartesian products? And is the subset still convex?

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