List questions from convex-analysis

Published on 27 Mar 2026 - 0:56

30

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Extreme points if $n \geq 2$: $X = \{ x \in \mathbb R^n \mid a^\top x = b\}$

Published on 01 Apr 2020 - 12:42

186

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A variant of Lipschitz inequality

Published on 11 Apr 2026 - 17:32

908

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Can the Fenchel conjugate be characterized through the Fenchel-Young inequality?

Published on 12 Apr 2026 - 2:05

303

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Is A Radial Basis Function Convex

Published on 09 Apr 2026 - 18:23

65

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Convexity of the product of two convex sets of non-square stochastic matrices

Published on 12 Apr 2026 - 20:32

536

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Matrix convexity with a matrix-valued function

Published on 05 Apr 2026 - 21:41

739

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Level sets and Concave function

Published on 12 Apr 2026 - 18:09

207

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Concavity of $x \rightarrow \sqrt{f(x)g(x)}$ with $f,g$ concave and positive

Published on 13 Apr 2026 - 11:05

336

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Diameter of a convex hull (S) = diameter (S)

Published on 25 Mar 2026 - 14:37

62

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Prove $S = (S^\circ)^\circ$

Published on 05 Apr 2020 - 11:39

74

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Show that $f(x,y) = (x^{\alpha} + y^{\alpha})^{1/\alpha}$ is concave for $0 < \alpha < 1$ and for $\alpha < 0$

Published on 05 Apr 2020 - 16:34

20

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convexity of special structure function

Published on 11 Apr 2026 - 5:55

65

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Translate a unimodular distribution so as to minimize its total-variation distance to another unimodular distribution

Published on 27 Mar 2026 - 0:59

143

Views

Rudin exercise 2.21 Clarification about convex sets being connected

Published on 06 Apr 2020 - 23:30

List Question

Existence of a concave function passing through given points

Extreme points if $n \geq 2$: $X = \{ x \in \mathbb R^n \mid a^\top x = b\}$

A variant of Lipschitz inequality

Can the Fenchel conjugate be characterized through the Fenchel-Young inequality?

Is A Radial Basis Function Convex

Convexity of the product of two convex sets of non-square stochastic matrices

Matrix convexity with a matrix-valued function

Level sets and Concave function

Concavity of $x \rightarrow \sqrt{f(x)g(x)}$ with $f,g$ concave and positive

Diameter of a convex hull (S) = diameter (S)

Prove $S = (S^\circ)^\circ$

Show that $f(x,y) = (x^{\alpha} + y^{\alpha})^{1/\alpha}$ is concave for $0 < \alpha < 1$ and for $\alpha < 0$

convexity of special structure function

Translate a unimodular distribution so as to minimize its total-variation distance to another unimodular distribution

Rudin exercise 2.21 Clarification about convex sets being connected

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