Question

Does the following hold for any matrix $A$ with non-negative eigenvalues?

score 103 · Answer 1 · 2026-04-10 08:02:47

103

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Does the following hold for any matrix $A$ with non-negative eigenvalues?

Published on 10 Apr 2026 - 8:02

score 3.5k · Answer 2 · 2026-04-14 20:51:18

3.5k

Views

How to tell if matrix is linearly dependent for non-square (m <n or m>n)?

Published on 14 Apr 2026 - 20:51

score 302 · Answer 3 · 2026-04-13 18:56:24

302

Views

Do the complex conjugate eigenvalues add up in pairs for the addition of a matrix and its transpose?

Published on 13 Apr 2026 - 18:56

score 172 · Answer 4 · 2026-04-16 06:25:55

172

Views

$L$ $U$ Decomposition Not Working (not Sure what I'm doing wrong: Matlab)

Published on 16 Apr 2026 - 6:25

score 543 · Answer 5 · 2026-04-12 01:31:38

543

Views

Determining a basis of a real subspace of complex matrices, with trace $0$

Published on 12 Apr 2026 - 1:31

score 103 · Answer 6 · 2026-04-10 06:42:34

103

Views

Is my reasoning on Transformation Matrices right?

Published on 10 Apr 2026 - 6:42

score 68 · Answer 7 · 2026-04-14 20:37:33

68

Views

How can we conclude that $q$ is indefinite?

Published on 14 Apr 2026 - 20:37

score 1k · Answer 8 · 2026-04-09 19:58:21

1k

Views

Is it possible to get parity check matrix when i can't get identity matrix?

Published on 09 Apr 2026 - 19:58

score 608 · Answer 9 · 2026-04-10 17:46:04

608

Views

A matrix whose column is a power of each other

Published on 10 Apr 2026 - 17:46

score 254 · Answer 10 · 2026-04-10 17:35:56

254

Views

What is the structure of a matrix when all the eigenvalues are complex?

Published on 10 Apr 2026 - 17:35

score 926 · Answer 11 · 2026-04-12 11:04:37

926

Views

Householder transformation preserves $2$-norm

Published on 12 Apr 2026 - 11:04

score 730 · Answer 12 · 2026-03-25 17:20:03

730

Views

Estimate of the norm of the inverse of matrix

Published on 25 Mar 2026 - 17:20

score 1.4k · Answer 13 · 2026-04-12 08:06:39

1.4k

Views

Computing $e^{tA}$, where $A$ is a matrix

Published on 12 Apr 2026 - 8:06

score 211 · Answer 14 · 2026-04-11 21:26:01

211

Views

What do the $i,j$ stand for when writing $A=(a_{ij})$?

Published on 11 Apr 2026 - 21:26

score 136 · Answer 15 · 2026-04-12 18:49:20

136

Views

Prove or disprove: Maximum trace of correlation matrix transform when random variables are reordered

Published on 12 Apr 2026 - 18:49

List Question

Does the following hold for any matrix $A$ with non-negative eigenvalues?

How to tell if matrix is linearly dependent for non-square (m <n or m>n)?

Do the complex conjugate eigenvalues add up in pairs for the addition of a matrix and its transpose?

$L$ $U$ Decomposition Not Working (not Sure what I'm doing wrong: Matlab)

Determining a basis of a real subspace of complex matrices, with trace $0$

Is my reasoning on Transformation Matrices right?

How can we conclude that $q$ is indefinite?

Is it possible to get parity check matrix when i can't get identity matrix?

A matrix whose column is a power of each other

What is the structure of a matrix when all the eigenvalues are complex?

Householder transformation preserves $2$-norm

Estimate of the norm of the inverse of matrix

Computing $e^{tA}$, where $A$ is a matrix

What do the $i,j$ stand for when writing $A=(a_{ij})$?

Prove or disprove: Maximum trace of correlation matrix transform when random variables are reordered

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