Question

Confused about positive semidefinite property of matrices

score 61 · Answer 1 · 2020-07-19 13:24:28

61

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Confused about positive semidefinite property of matrices

Published on 19 Jul 2020 - 13:24

score 84 · Answer 2 · 2020-07-21 17:06:00

84

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How to prove this matrix is positive semi-definite?

Published on 21 Jul 2020 - 17:06

score 151 · Answer 3 · 2020-07-23 08:54:00

151

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Positive semi-definite real matrix with unit diagonal

Published on 23 Jul 2020 - 8:54

score 93 · Answer 4 · 2020-07-23 20:24:10

93

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Under what conditions is the product of a PSD matrix and another matrix itself PSD?

Published on 23 Jul 2020 - 20:24

score 126 · Answer 5 · 2020-07-23 23:31:26

126

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Division of Positive Definite Matrix - Inner Product Space

Published on 23 Jul 2020 - 23:31

score 184 · Answer 6 · 2026-03-25 06:58:57

184

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Visualise Gram sets of nonnegative polynomials in the cone of PSD matrices

Published on 25 Mar 2026 - 6:58

score 672 · Answer 7 · 2020-07-26 01:14:34

672

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Is it true that the infinity norm of the matrix exponential $\|e^{At}\|_{l^\infty} \leq 1$ if $A$ is a negative diagonally dominant matrix?

Published on 26 Jul 2020 - 1:14

score 246 · Answer 8 · 2020-07-26 02:13:29

246

Views

Does a symmetric diagonally dominant real matrix $A$ with nonnegative diagonal entries satisfy $(x^{2p-1})^T A x \geq 0$?

Published on 26 Jul 2020 - 2:13

score 591 · Answer 9 · 2020-07-27 13:36:55

591

Views

Sum of a diagonal matrix and a symmetric positive semidefinite matrix

Published on 27 Jul 2020 - 13:36

score 36 · Answer 10 · 2020-07-28 18:13:23

36

Views

Find a positive-definite matrix $B$ such that $\langle A,B\rangle_F=0$

Published on 28 Jul 2020 - 18:13

score 102 · Answer 11 · 2020-07-29 00:29:46

102

Views

Is there a name for symmetric matrices with exactly one non-zero eigenvalue which also equals the trace?

Published on 29 Jul 2020 - 0:29

score 341 · Answer 12 · 2020-07-30 13:38:04

341

Views

Appending a row and column to a positive semi definite matrix

Published on 30 Jul 2020 - 13:38

score 278 · Answer 13 · 2020-07-31 04:02:51

278

Views

If matrix $A$ is positive semidefinite and tall matrix $W$ has orthonormal columns, does $\mbox{Tr} \left( W^T A W \right) \leq \mbox{Tr} (A)$ hold?

Published on 31 Jul 2020 - 4:02

score 501 · Answer 14 · 2016-07-06 22:03:02

501

Views

Normal matrix on f.d space implies unitary and positive semidefinite matrices commute

Published on 06 Jul 2016 - 22:03

score 35 · Answer 15 · 2016-07-21 00:36:44

35

Views

How can I get the following equation w.r.t. positive semidefinite symmetric matrix?

Published on 21 Jul 2016 - 0:36

List Question

Confused about positive semidefinite property of matrices

How to prove this matrix is positive semi-definite?

Positive semi-definite real matrix with unit diagonal

Under what conditions is the product of a PSD matrix and another matrix itself PSD?

Division of Positive Definite Matrix - Inner Product Space

Visualise Gram sets of nonnegative polynomials in the cone of PSD matrices

Is it true that the infinity norm of the matrix exponential $\|e^{At}\|_{l^\infty} \leq 1$ if $A$ is a negative diagonally dominant matrix?

Does a symmetric diagonally dominant real matrix $A$ with nonnegative diagonal entries satisfy $(x^{2p-1})^T A x \geq 0$?

Sum of a diagonal matrix and a symmetric positive semidefinite matrix

Find a positive-definite matrix $B$ such that $\langle A,B\rangle_F=0$

Is there a name for symmetric matrices with exactly one non-zero eigenvalue which also equals the trace?

Appending a row and column to a positive semi definite matrix

If matrix $A$ is positive semidefinite and tall matrix $W$ has orthonormal columns, does $\mbox{Tr} \left( W^T A W \right) \leq \mbox{Tr} (A)$ hold?

Normal matrix on f.d space implies unitary and positive semidefinite matrices commute

How can I get the following equation w.r.t. positive semidefinite symmetric matrix?

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