Question

Matrix Congruence: Are $B = P^TAP$ and $B = PAP^T$ equivalent?

score 417 · Answer 1 · 2026-04-06 20:54:18

417

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Matrix Congruence: Are $B = P^TAP$ and $B = PAP^T$ equivalent?

Published on 06 Apr 2026 - 20:54

score 56 · Answer 2 · 2018-03-22 18:27:41

56

Views

Give a $2\times2$ real matrix, without zero elements satisfying following equations

Published on 22 Mar 2018 - 18:27

score 101 · Answer 3 · 2026-03-27 05:15:48

101

Views

reversing magnitude of real values

Published on 27 Mar 2026 - 5:15

score 555 · Answer 4 · 2018-03-22 18:38:14

555

Views

Relationship between rref and inverse matrices

Published on 22 Mar 2018 - 18:38

score 276 · Answer 5 · 2026-03-24 23:44:17

276

Views

Can we compare elements of two matrices based on their norm and singular values?

Published on 24 Mar 2026 - 23:44

score 595 · Answer 6 · 2026-03-25 14:02:53

595

Views

Proof that bipartite graph has perfect matching if and only if zero sub-matrix is not included

Published on 25 Mar 2026 - 14:02

score 250 · Answer 7 · 2026-03-26 06:27:46

250

Views

How to describe points given a matrix and its determinant?

Published on 26 Mar 2026 - 6:27

score 35 · Answer 8 · 2026-03-25 22:11:20

35

Views

Find the change of basis matrices from D to ε2 and from ε2 to D

Published on 25 Mar 2026 - 22:11

score 80 · Answer 9 · 2026-04-04 19:29:59

80

Views

Check Reasoning On Calculation Involving Diagonal Matrix and Matrix and Hadamard Products

Published on 04 Apr 2026 - 19:29

score 353 · Answer 10 · 2026-03-27 10:10:07

353

Views

Taking the triangle inequality for norm of a matrix to some power

Published on 27 Mar 2026 - 10:10

score 53 · Answer 11 · 2026-03-28 10:03:33

53

Views

Prove a function is a linear transformation

Published on 28 Mar 2026 - 10:03

score 2.6k · Answer 12 · 2026-03-24 22:08:22

2.6k

Views

Is there a matrix $B$ such that $B^2=A$, with $A$ being diagonalizable?

Published on 24 Mar 2026 - 22:08

score 3.9k · Answer 13 · 2026-03-27 23:31:24

3.9k

Views

Prove three eigenvectors from three distinct eigenvalues are linearly independent

Published on 27 Mar 2026 - 23:31

score 3k · Answer 14 · 2026-03-25 21:47:55

3k

Views

If $P$ is a projection matrix then its eigenvalues are $0$ or $1$

Published on 25 Mar 2026 - 21:47

score 839 · Answer 15 · 2026-04-06 18:57:21

839

Views

Eigenvectors of companion matrix

Published on 06 Apr 2026 - 18:57

List Question

Matrix Congruence: Are $B = P^TAP$ and $B = PAP^T$ equivalent?

Give a $2\times2$ real matrix, without zero elements satisfying following equations

reversing magnitude of real values

Relationship between rref and inverse matrices

Can we compare elements of two matrices based on their norm and singular values?

Proof that bipartite graph has perfect matching if and only if zero sub-matrix is not included

How to describe points given a matrix and its determinant?

Find the change of basis matrices from D to ε2 and from ε2 to D

Check Reasoning On Calculation Involving Diagonal Matrix and Matrix and Hadamard Products

Taking the triangle inequality for norm of a matrix to some power

Prove a function is a linear transformation

Is there a matrix $B$ such that $B^2=A$, with $A$ being diagonalizable?

Prove three eigenvectors from three distinct eigenvalues are linearly independent

If $P$ is a projection matrix then its eigenvalues are $0$ or $1$

Eigenvectors of companion matrix

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