List questions from convex-analysis

Published on 10 Apr 2026 - 16:01

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Definition of convexity

Published on 11 Apr 2026 - 18:36

184

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What is the dual function of the $f(x) = \sum_i x_i \ln(x_i)$?

Published on 14 Apr 2026 - 12:23

318

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What is the minimum of a sum of functions, each of which is the Max of a quadratic and zero?

Published on 15 Apr 2026 - 10:43

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Are homeomorphisms convex-preserving?

Published on 07 Apr 2026 - 23:49

647

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convex function boundary points

Published on 09 Apr 2026 - 17:56

578

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An open convex set is the intersection of all half planes containing it

Published on 15 Apr 2026 - 5:59

99

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Proof of a convex function inequality

Published on 09 Apr 2026 - 5:29

26

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Integral of a fraction of gaussian pdfs

Published on 11 Apr 2026 - 0:16

64

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a closedness argument in the proof of Theorem 17.2 in Rockafellar's Convex Analysis

Published on 11 Apr 2026 - 19:06

1.1k

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log-concavity of a function of a log-concave CDF

Published on 14 Apr 2026 - 22:12

5.8k

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Proof that a set $C$ is convex $\iff$ its intersection with any line is convex

Published on 13 Apr 2026 - 16:50

507

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Reference request: Interchange Inf and integral

Published on 15 Apr 2026 - 15:30

307

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Approximation of Proximal Operator When $ \lambda $ Is Small

Published on 09 Apr 2026 - 15:03

2.6k

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If $f$ is convex and non-negative and $g$ is concave and positive then $f^{2}/g$ is convex

Published on 16 Apr 2026 - 1:08

List Question

Finite Convex function?

Definition of convexity

What is the dual function of the $f(x) = \sum_i x_i \ln(x_i)$?

What is the minimum of a sum of functions, each of which is the Max of a quadratic and zero?

Are homeomorphisms convex-preserving?

convex function boundary points

An open convex set is the intersection of all half planes containing it

Proof of a convex function inequality

Integral of a fraction of gaussian pdfs

a closedness argument in the proof of Theorem 17.2 in Rockafellar's Convex Analysis

log-concavity of a function of a log-concave CDF

Proof that a set $C$ is convex $\iff$ its intersection with any line is convex

Reference request: Interchange Inf and integral

Approximation of Proximal Operator When $ \lambda $ Is Small

If $f$ is convex and non-negative and $g$ is concave and positive then $f^{2}/g$ is convex

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