List questions from convex-analysis

Published on 05 Apr 2026 - 10:32

59

Views

Proving complicated convexity example

Published on 25 Mar 2026 - 17:17

120

Views

Convexity of $f(A)=x^TA^{-1}x$ and $f(x,A)=x^TA^{-1}x$.

Published on 17 Sep 2019 - 1:46

151

Views

$f(x)=\log(e^{x_1}+\cdots+e^{x_n})$ is convex or not?

Published on 17 Sep 2019 - 6:37

200

Views

Convexity of "perturbed" convex function

Published on 26 Mar 2026 - 12:44

90

Views

Compact convex set representation $K = \operatorname{cl} \operatorname{conv} \operatorname{exp} K$

Published on 25 Mar 2026 - 9:50

1.3k

Views

Dual of a polyhedral cone

Published on 05 Apr 2026 - 22:11

653

Views

Interior points of a convex set

Published on 18 Sep 2019 - 7:16

49

Views

Show that $\left\{\varphi\in{L^p(\mu)}':f(x)\ge\langle\varphi,f\rangle\text{ for all }f\in L^p(\mu)\right\}=\{\delta_x\}$

Published on 01 Apr 2026 - 0:26

719

Views

Quasi-concavity of $f(x_1,x_2)=x_1^2 x_2^2$ for non-negative $x_1,x_2$

Published on 19 Sep 2019 - 23:09

44

Views

Show this quadratic is convex

Published on 20 Sep 2019 - 2:07

117

Views

Is a finite function bounded on a closed bounded set?

Published on 20 Sep 2019 - 8:13

170

Views

Jensen Inequality Proof Strong If and Only If Version

Published on 25 Mar 2026 - 11:22

138

Views

Reference request in convex analysis: algebraic closure vs closure of convex set in finite dimension

Published on 26 Mar 2026 - 12:47

81

Views

Derivative of a convex function vs. Derivative of a linear function

Published on 20 Sep 2019 - 22:55

List Question

Closure of a cone

Proving complicated convexity example

Convexity of $f(A)=x^TA^{-1}x$ and $f(x,A)=x^TA^{-1}x$.

$f(x)=\log(e^{x_1}+\cdots+e^{x_n})$ is convex or not?

Convexity of "perturbed" convex function

Compact convex set representation $K = \operatorname{cl} \operatorname{conv} \operatorname{exp} K$

Dual of a polyhedral cone

Interior points of a convex set

Show that $\left\{\varphi\in{L^p(\mu)}':f(x)\ge\langle\varphi,f\rangle\text{ for all }f\in L^p(\mu)\right\}=\{\delta_x\}$

Quasi-concavity of $f(x_1,x_2)=x_1^2 x_2^2$ for non-negative $x_1,x_2$

Show this quadratic is convex

Is a finite function bounded on a closed bounded set?

Jensen Inequality Proof Strong If and Only If Version

Reference request in convex analysis: algebraic closure vs closure of convex set in finite dimension

Derivative of a convex function vs. Derivative of a linear function

Trending Questions

Popular # Hahtags

Popular Questions