Question

Minimise $|f''(x)|$ on an interval when you know the values of the function and the values of the derivative at the endpoints of the interval only.

score 196 · Answer 1 · 2026-04-16 04:10:07

196

Views

Minimise $|f''(x)|$ on an interval when you know the values of the function and the values of the derivative at the endpoints of the interval only.

Published on 16 Apr 2026 - 4:10

score 25 · Answer 2 · 2026-04-14 21:59:55

25

Views

Let $a \in \mathbb R^m$. What is an analytic formula for the maximum value of $\|Xa\|_2$ over all $k \times m$ matrices with $\|X\|_F \le 1$?

Published on 14 Apr 2026 - 21:59

score 138 · Answer 3 · 2026-04-15 16:03:41

138

Views

Sufficient condition on $f:\mathbb R \to \mathbb R$ to ensure the function $F:x \mapsto f(x^\top a)$ is geodesically convex on $n$-sphere

Published on 15 Apr 2026 - 16:03

score 51 · Answer 4 · 2026-04-17 12:05:34

51

Views

Maximization of non-convex function over a convex set.

Published on 17 Apr 2026 - 12:05

score 124 · Answer 5 · 2026-04-14 11:29:23

124

Views

Minimization of sum of ratios objective with linear constraints

Published on 14 Apr 2026 - 11:29

score 142 · Answer 6 · 2026-04-17 12:01:02

142

Views

Proximal operator of the function $w \mapsto \max_{i=1}^k a_i^Tw$, for fixed $a_1,\ldots,a_k \in \mathbb R^n$

Published on 17 Apr 2026 - 12:01

score 568 · Answer 7 · 2026-04-17 07:41:11

568

Views

Prove $\ln(e^{x_1^2+x_2^2}+e^{\sqrt{x_1^2+1}})$ is convex

Published on 17 Apr 2026 - 7:41

score 84 · Answer 8 · 2026-04-11 11:18:50

84

Views

Math Problem from Economics

Published on 11 Apr 2026 - 11:18

score 58 · Answer 9 · 2026-04-17 04:06:24

58

Views

If one system has a feasible solution then other does not have

Published on 17 Apr 2026 - 4:06

score 67 · Answer 10 · 2026-04-08 22:42:51

67

Views

optimal policy in reinforcement learning

Published on 08 Apr 2026 - 22:42

score 126 · Answer 11 · 2026-04-11 10:37:54

126

Views

Why replacing an uncertainty set with its convex hull?

Published on 11 Apr 2026 - 10:37

score 281 · Answer 12 · 2026-04-14 06:27:52

281

Views

Proof a function is convex if and only if it meets this condition?

Published on 14 Apr 2026 - 6:27

score 43 · Answer 13 · 2026-04-14 16:57:31

43

Views

Fenchel conjugate of the following function.

Published on 14 Apr 2026 - 16:57

score 177 · Answer 14 · 2026-04-15 04:14:40

177

Views

Show that $-\left(\min_{w\in C}(w^\top s+\frac12\|w\|_2^2)\right)$ is convex or show that it is concave

Published on 15 Apr 2026 - 4:14

score 52 · Answer 15 · 2026-04-14 07:35:42

52

Views

Pdf about conic optimization

Published on 14 Apr 2026 - 7:35

List Question

Minimise $|f''(x)|$ on an interval when you know the values of the function and the values of the derivative at the endpoints of the interval only.

Let $a \in \mathbb R^m$. What is an analytic formula for the maximum value of $\|Xa\|_2$ over all $k \times m$ matrices with $\|X\|_F \le 1$?

Sufficient condition on $f:\mathbb R \to \mathbb R$ to ensure the function $F:x \mapsto f(x^\top a)$ is geodesically convex on $n$-sphere

Maximization of non-convex function over a convex set.

Minimization of sum of ratios objective with linear constraints

Proximal operator of the function $w \mapsto \max_{i=1}^k a_i^Tw$, for fixed $a_1,\ldots,a_k \in \mathbb R^n$

Prove $\ln(e^{x_1^2+x_2^2}+e^{\sqrt{x_1^2+1}})$ is convex

Math Problem from Economics

If one system has a feasible solution then other does not have

optimal policy in reinforcement learning

Why replacing an uncertainty set with its convex hull?

Proof a function is convex if and only if it meets this condition?

Fenchel conjugate of the following function.

Show that $-\left(\min_{w\in C}(w^\top s+\frac12\|w\|_2^2)\right)$ is convex or show that it is concave

Pdf about conic optimization

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