List questions from convex-analysis

Published on 25 Mar 2026 - 7:40

394

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Intuition behind , and understanding the definition of convexity in the real projective space

Published on 09 Apr 2026 - 6:23

190

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Show that $\prod x_i \ge 1$ is a convex set

Published on 19 May 2020 - 13:33

1.5k

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will maximum of convex set function intersect with Boundary?

Published on 12 Apr 2026 - 15:16

59

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Numerical range of quadratic form over unit sphere

Published on 12 Apr 2026 - 6:03

80

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Convexity analysis

Published on 09 Apr 2026 - 8:49

231

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Is the dilation of a convex body a subset of original convex body

Published on 13 Apr 2026 - 7:14

68

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How to prove a property of a concave function?

Published on 10 Apr 2026 - 17:00

257

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A subdifferential formulated as an argmax problem

Published on 25 Mar 2026 - 13:51

54

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Prove that $f\left(x\right)=\sum_{i=1}^{n}x_{i}\ln x_{i}-\left(\sum_{i=1}^{n}x_{i}\right)\ln\left(\sum_{i=1}^{n}x_{i}\right)$ is convex

Published on 21 May 2020 - 8:35

138

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minimize over a quadratic function

Published on 13 Apr 2026 - 23:46

133

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Is a convex function with these properties possible?

Published on 25 Mar 2026 - 15:45

179

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Convex sets and their extreme points

Published on 25 Mar 2026 - 16:08

117

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Interchange of summation and max operator

Published on 09 Apr 2026 - 13:08

26

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For convex functions $f(x)>1,g(x)>1, x\in \mathbb{R}$, is the product $(f\cdot g)(x)$ necessarily convex?

Published on 24 May 2020 - 7:27

List Question

Any function that is non-proximable and non-smooth?

Intuition behind , and understanding the definition of convexity in the real projective space

Show that $\prod x_i \ge 1$ is a convex set

will maximum of convex set function intersect with Boundary?

Numerical range of quadratic form over unit sphere

Convexity analysis

Is the dilation of a convex body a subset of original convex body

How to prove a property of a concave function?

A subdifferential formulated as an argmax problem

Prove that $f\left(x\right)=\sum_{i=1}^{n}x_{i}\ln x_{i}-\left(\sum_{i=1}^{n}x_{i}\right)\ln\left(\sum_{i=1}^{n}x_{i}\right)$ is convex

minimize over a quadratic function

Is a convex function with these properties possible?

Convex sets and their extreme points

Interchange of summation and max operator

For convex functions $f(x)>1,g(x)>1, x\in \mathbb{R}$, is the product $(f\cdot g)(x)$ necessarily convex?

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