Question

f(x) convex, u(x) and l(x) convex quadratic upper/lower bounds. Is $x^_f$ between $x^_l$ and $x^*_u$?

score 123 · Answer 1 · 2019-12-23 04:07:26

123

Views

f(x) convex, u(x) and l(x) convex quadratic upper/lower bounds. Is $x^_f$ between $x^_l$ and $x^*_u$?

Published on 23 Dec 2019 - 4:07

score 73 · Answer 2 · 2026-03-26 13:30:14

73

Views

The sum of оbtuse angles of а convex polygon is $2013^\circ$. How many sides does it have?

Published on 26 Mar 2026 - 13:30

score 169 · Answer 3 · 2026-03-26 09:49:54

169

Views

Is there a lower bound to density at boundary points of a convex set?

Published on 26 Mar 2026 - 9:49

score 605 · Answer 4 · 2020-01-06 04:07:01

605

Views

What are the main ideas needed to prove that only $92$ Johnson solids exist?

Published on 06 Jan 2020 - 4:07

score 65 · Answer 5 · 2020-01-07 08:31:28

65

Views

Relationship between $\mathbb P_{x \sim \mathcal N(x_0,\sigma^2 I)}(x \in A)$ and distance of $x_0$ to $A$

Published on 07 Jan 2020 - 8:31

score 481 · Answer 6 · 2026-03-12 21:34:50

481

Views

Is a convex cone which is generated by a closed linear cone always closed?

Published on 12 Mar 2026 - 21:34

score 175 · Answer 7 · 2026-03-14 02:59:17

175

Views

The boundary of the convex hull of squares of skew-symmetric matrices

Published on 14 Mar 2026 - 2:59

score 48 · Answer 8 · 2020-01-10 02:25:18

48

Views

origin of this hyperplane formula 1/n

Published on 10 Jan 2020 - 2:25

score 140 · Answer 9 · 2026-03-25 14:25:53

140

Views

What is the convex hull of this cone in $\mathbb{R}^n$?

Published on 25 Mar 2026 - 14:25

score 184 · Answer 10 · 2020-01-14 07:52:01

184

Views

Is a set "trapped" between two convex sets, convex?

Published on 14 Jan 2020 - 7:52

score 144 · Answer 11 · 2020-01-15 01:51:58

144

Views

A convex combinatorics problem related to VC-dimension

Published on 15 Jan 2020 - 1:51

score 347 · Answer 12 · 2020-01-15 07:16:36

347

Views

Are convex fractals possible?

Published on 15 Jan 2020 - 7:16

score 483 · Answer 13 · 2026-03-22 18:05:07

483

Views

Trouble visualizing a second-order cone constraint

Published on 22 Mar 2026 - 18:05

score 799 · Answer 14 · 2020-01-17 04:33:48

799

Views

How is a halfspace an affine convex cone?

Published on 17 Jan 2020 - 4:33

score 250 · Answer 15 · 2020-01-21 03:24:24

250

Views

Prove that convex open set in $\mathcal{R}^d$ are algebraically open.

Published on 21 Jan 2020 - 3:24

List Question

f(x) convex, u(x) and l(x) convex quadratic upper/lower bounds. Is $x^_f$ between $x^_l$ and $x^*_u$?

The sum of оbtuse angles of а convex polygon is $2013^\circ$. How many sides does it have?

Is there a lower bound to density at boundary points of a convex set?

What are the main ideas needed to prove that only $92$ Johnson solids exist?

Relationship between $\mathbb P_{x \sim \mathcal N(x_0,\sigma^2 I)}(x \in A)$ and distance of $x_0$ to $A$

Is a convex cone which is generated by a closed linear cone always closed?

The boundary of the convex hull of squares of skew-symmetric matrices

origin of this hyperplane formula 1/n

What is the convex hull of this cone in $\mathbb{R}^n$?

Is a set "trapped" between two convex sets, convex?

A convex combinatorics problem related to VC-dimension

Are convex fractals possible?

Trouble visualizing a second-order cone constraint

How is a halfspace an affine convex cone?

Prove that convex open set in $\mathcal{R}^d$ are algebraically open.

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