Question

Find $C\subset \mathbb{R}^2$ convex unbounded such that $\vert C \vert $ is not convex?

score 73 · Answer 1 · 2014-07-31 23:04:03

73

Views

Find $C\subset \mathbb{R}^2$ convex unbounded such that $\vert C \vert $ is not convex?

Published on 31 Jul 2014 - 23:04

score 45 · Answer 2 · 2014-08-02 08:24:29

45

Views

Extending the notion of convex hull in $\Bbb R^n$

Published on 02 Aug 2014 - 8:24

score 940 · Answer 3 · 2014-08-02 09:55:16

940

Views

(Strictly) concave/convex function: Increasing / decreasing slope triangle?

Published on 02 Aug 2014 - 9:55

score 48 · Answer 4 · 2026-03-26 09:19:44

48

Views

Alternative characterization of a finite dimensional affine set

Published on 26 Mar 2026 - 9:19

score 45 · Answer 5 · 2014-08-03 17:03:29

45

Views

Show P is linear if it is convex and positive homogenious functional

Published on 03 Aug 2014 - 17:03

score 1k · Answer 6 · 2026-04-02 10:04:19

1k

Views

What is a $0$-sublevel set?

Published on 02 Apr 2026 - 10:04

score 1k · Answer 7 · 2026-03-26 16:06:05

1k

Views

Prove vertices of a simplex are affinely independent

Published on 26 Mar 2026 - 16:06

score 1.3k · Answer 8 · 2014-08-05 08:08:51

1.3k

Views

Convexity on a direction

Published on 05 Aug 2014 - 8:08

score 81 · Answer 9 · 2014-08-05 18:59:14

81

Views

Prove that the set $C = \{x \in\Bbb R : ax\le b\}$ is convex

Published on 05 Aug 2014 - 18:59

score 490 · Answer 10 · 2026-04-02 10:04:07

490

Views

$F(x) = f(x) + g(x) + h(x)$, where h(x) is strongly convex , is also strongly convex

Published on 02 Apr 2026 - 10:04

score 1.4k · Answer 11 · 2014-08-06 11:21:49

1.4k

Views

separating hyperplane theorem proof

Published on 06 Aug 2014 - 11:21

score 638 · Answer 12 · 2026-03-29 14:57:42

638

Views

Gradient descent (with line search) for convex functions viewed as alternation

Published on 29 Mar 2026 - 14:57

score 378 · Answer 13 · 2014-08-07 21:17:38

378

Views

Strictly Convex and Differentiable Implies

Published on 07 Aug 2014 - 21:17

score 228 · Answer 14 · 2014-08-08 01:56:09

228

Views

Differentiable Strictly Convex Function on Interval

Published on 08 Aug 2014 - 1:56

score 162 · Answer 15 · 2014-08-08 02:35:08

162

Views

Two Strictly Convex Functions with Contact of Order 1

Published on 08 Aug 2014 - 2:35

List Question

Find $C\subset \mathbb{R}^2$ convex unbounded such that $\vert C \vert $ is not convex?

Extending the notion of convex hull in $\Bbb R^n$

(Strictly) concave/convex function: Increasing / decreasing slope triangle?

Alternative characterization of a finite dimensional affine set

Show P is linear if it is convex and positive homogenious functional

What is a $0$-sublevel set?

Prove vertices of a simplex are affinely independent

Convexity on a direction

Prove that the set $C = \{x \in\Bbb R : ax\le b\}$ is convex

$F(x) = f(x) + g(x) + h(x)$, where h(x) is strongly convex , is also strongly convex

separating hyperplane theorem proof

Gradient descent (with line search) for convex functions viewed as alternation

Strictly Convex and Differentiable Implies

Differentiable Strictly Convex Function on Interval

Two Strictly Convex Functions with Contact of Order 1

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