Question

Hey, I've got problems to solve the following exercise. Could anybody please try to help me. :)

score 40 · Answer 1 · 2020-06-15 10:00:18

40

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Hey, I've got problems to solve the following exercise. Could anybody please try to help me. :)

Published on 15 Jun 2020 - 10:00

score 51 · Answer 2 · 2020-06-15 10:40:25

51

Views

Normal cone of a vertex

Published on 15 Jun 2020 - 10:40

score 398 · Answer 3 · 2026-04-03 03:19:53

398

Views

Gradient of $\mbox{dist}\left(x, D \right)^2:= \left\| x - P_{D}(x)\right\|_2^2$, where $P_{D}(x)$ is a projection operator

Published on 03 Apr 2026 - 3:19

score 59 · Answer 4 · 2026-04-05 23:17:18

59

Views

Complexity of Finding a Function Under Specific Constraints

Published on 05 Apr 2026 - 23:17

score 1.2k · Answer 5 · 2020-06-16 03:35:15

1.2k

Views

True or false: continuous image of convex is convex

Published on 16 Jun 2020 - 3:35

score 43 · Answer 6 · 2020-06-16 17:17:59

43

Views

First-order convexity implications

Published on 16 Jun 2020 - 17:17

score 51 · Answer 7 · 2026-03-28 03:34:42

51

Views

How do I show $ |x|^{p}$ for $0<p<1$ is quasiconvex?

Published on 28 Mar 2026 - 3:34

score 159 · Answer 8 · 2026-03-26 06:33:53

159

Views

construction Lyapunov function for global asymptotic stable systems

Published on 26 Mar 2026 - 6:33

score 63 · Answer 9 · 2026-04-03 07:57:29

63

Views

How to show $x_{k}=\frac{(I-\alpha Q)^{k} x_{0}}{\left\|(I-\alpha Q)^{k} x_{0}\right\|}$ where Q is positive definite, converges to optimal solution

Published on 03 Apr 2026 - 7:57

score 121 · Answer 10 · 2020-06-18 15:29:40

121

Views

Regarding closed half spaces in $\mathbb{C}^n$

Published on 18 Jun 2020 - 15:29

score 60 · Answer 11 · 2026-03-27 07:19:55

60

Views

Is the problem: $\underset{x}{\min}\|x-c\|_{2}^{2}$ subject to $Ax=b$ convex?

Published on 27 Mar 2026 - 7:19

score 107 · Answer 12 · 2026-03-27 10:09:32

107

Views

Newton's method question, Optimisation for $f(x)=x^{r}$ with convexity

Published on 27 Mar 2026 - 10:09

score 271 · Answer 13 · 2020-06-19 15:37:01

271

Views

convex function of n convex function

Published on 19 Jun 2020 - 15:37

score 52 · Answer 14 · 2020-06-19 17:24:46

52

Views

Is it rigorous? Solve an optimization problem by letting a parameter approach to $0$ that should be exactly $0$.

Published on 19 Jun 2020 - 17:24

score 337 · Answer 15 · 2026-03-29 12:28:00

337

Views

Given $V \in \mathbb{R}^{n\times(n-r)}$, why $V^TAV = 0$ implies $\operatorname{rank}(A) \leq r$?

Published on 29 Mar 2026 - 12:28

List Question

Hey, I've got problems to solve the following exercise. Could anybody please try to help me. :)

Normal cone of a vertex

Gradient of $\mbox{dist}\left(x, D \right)^2:= \left\| x - P_{D}(x)\right\|_2^2$, where $P_{D}(x)$ is a projection operator

Complexity of Finding a Function Under Specific Constraints

True or false: continuous image of convex is convex

First-order convexity implications

How do I show $ |x|^{p}$ for $0<p<1$ is quasiconvex?

construction Lyapunov function for global asymptotic stable systems

How to show $x_{k}=\frac{(I-\alpha Q)^{k} x_{0}}{\left\|(I-\alpha Q)^{k} x_{0}\right\|}$ where Q is positive definite, converges to optimal solution

Regarding closed half spaces in $\mathbb{C}^n$

Is the problem: $\underset{x}{\min}\|x-c\|_{2}^{2}$ subject to $Ax=b$ convex?

Newton's method question, Optimisation for $f(x)=x^{r}$ with convexity

convex function of n convex function

Is it rigorous? Solve an optimization problem by letting a parameter approach to $0$ that should be exactly $0$.

Given $V \in \mathbb{R}^{n\times(n-r)}$, why $V^TAV = 0$ implies $\operatorname{rank}(A) \leq r$?

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