Question

matrix psd inequality, for addition

score 38 · Answer 1 · 2020-04-06 04:30:04

38

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matrix psd inequality, for addition

Published on 06 Apr 2020 - 4:30

score 30 · Answer 2 · 2020-04-06 11:53:37

30

Views

Is it possible to construct a PSD matrix that has multiple null vector rows?

Published on 06 Apr 2020 - 11:53

score 37 · Answer 3 · 2020-04-07 16:00:22

37

Views

Proving the difference of two matrices with similar properties is psd

Published on 07 Apr 2020 - 16:00

score 513 · Answer 4 · 2020-04-07 17:21:14

513

Views

Convex optimization under a positive semidefinite constraint involving projections

Published on 07 Apr 2020 - 17:21

score 215 · Answer 5 · 2026-03-25 08:05:59

215

Views

A matrix optimization problem that resembles a standard semidefinite program

Published on 25 Mar 2026 - 8:05

score 861 · Answer 6 · 2020-04-10 23:53:39

861

Views

Variation of Least Squares with Symmetric Positive Semi Definite (PSD) Constraint

Published on 10 Apr 2020 - 23:53

score 484 · Answer 7 · 2020-04-11 09:39:54

484

Views

Positive definite implies positive semi-definite

Published on 11 Apr 2020 - 9:39

score 67 · Answer 8 · 2026-03-25 08:10:50

67

Views

Show that, if $A$ is PSD, then there is an optimal solution $x_i, y_j$ of the below given optimization problem such that $x_i = y_i$ for all $i$

Published on 25 Mar 2026 - 8:10

score 1k · Answer 9 · 2020-04-12 06:23:00

1k

Views

A and B are real, symmetric and positive semi-definite matrices of the same order; is AB diagonalizable?

Published on 12 Apr 2020 - 6:23

score 241 · Answer 10 · 2020-04-13 21:30:15

241

Views

Can a symmetric positive semi-definite matrix be transformed to any symmetric positive semi-definite matrix with the same rank?

Published on 13 Apr 2020 - 21:30

score 46 · Answer 11 · 2026-03-25 08:13:43

46

Views

Calculate $\max\{\frac{1}{2}\sum\limits_{i=1}^4(1-X_{i,i+1}) \mid X \succeq 0, \, X_{ii}=1 \forall i\in [5]\}$ analytically.

Published on 25 Mar 2026 - 8:13

score 55 · Answer 12 · 2020-04-14 04:03:58

55

Views

Question about the diagonalizability

Published on 14 Apr 2020 - 4:03

score 168 · Answer 13 · 2020-04-14 10:26:56

168

Views

Difference between two positive semidefinite matrices

Published on 14 Apr 2020 - 10:26

score 175 · Answer 14 · 2026-03-26 09:40:27

175

Views

Eigenvalues of matrix product $ADA^T$

Published on 26 Mar 2026 - 9:40

score 200 · Answer 15 · 2026-03-26 01:23:22

200

Views

Is there a $4$-by-$4$, rank $3$, positive semidefinite matrix with $a_{ii}=3$, $|a_{12}|\neq 1$, and principal minors having minimal eigenvalue $1$?

Published on 26 Mar 2026 - 1:23

List Question

matrix psd inequality, for addition

Is it possible to construct a PSD matrix that has multiple null vector rows?

Proving the difference of two matrices with similar properties is psd

Convex optimization under a positive semidefinite constraint involving projections

A matrix optimization problem that resembles a standard semidefinite program

Variation of Least Squares with Symmetric Positive Semi Definite (PSD) Constraint

Positive definite implies positive semi-definite

Show that, if $A$ is PSD, then there is an optimal solution $x_i, y_j$ of the below given optimization problem such that $x_i = y_i$ for all $i$

A and B are real, symmetric and positive semi-definite matrices of the same order; is AB diagonalizable?

Can a symmetric positive semi-definite matrix be transformed to any symmetric positive semi-definite matrix with the same rank?

Calculate $\max\{\frac{1}{2}\sum\limits_{i=1}^4(1-X_{i,i+1}) \mid X \succeq 0, \, X_{ii}=1 \forall i\in [5]\}$ analytically.

Question about the diagonalizability

Difference between two positive semidefinite matrices

Eigenvalues of matrix product $ADA^T$

Is there a $4$-by-$4$, rank $3$, positive semidefinite matrix with $a_{ii}=3$, $|a_{12}|\neq 1$, and principal minors having minimal eigenvalue $1$?

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