Question

A continous extension of the group of permutation matrices

score 89 · Answer 1 · 2020-08-02 14:57:52

89

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A continous extension of the group of permutation matrices

Published on 02 Aug 2020 - 14:57

score 126 · Answer 2 · 2026-03-25 14:19:58

126

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Is a square commutation matrix positive semidefinite?

Published on 25 Mar 2026 - 14:19

score 116 · Answer 3 · 2026-03-25 13:51:04

116

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Calculating determinants from matrices

Published on 25 Mar 2026 - 13:51

score 378 · Answer 4 · 2020-08-14 00:43:02

378

Views

Do commuting matrices with real and complex eigenvectors still share eigenvectors?

Published on 14 Aug 2020 - 0:43

score 763 · Answer 5 · 2020-08-17 13:40:25

763

Views

Linear Algebra: $n!$ permutation matrices proof, and amount of permutation matrices with $x$ row exchanges from $I$

Published on 17 Aug 2020 - 13:40

score 95 · Answer 6 · 2020-08-28 01:29:39

95

Views

Given an $n\times n$ matrix A with rows that are some permutation of $I_n$, find the smallest integer $m$ such that $A^m = I_n$

Published on 28 Aug 2020 - 1:29

score 489 · Answer 7 · 2020-08-28 17:35:24

489

Views

Invariant subspaces to the permuting action of the alternating group.

Published on 28 Aug 2020 - 17:35

score 1.1k · Answer 8 · 2020-09-14 20:34:31

1.1k

Views

Intuitive explanation for inverse of a permutation matrix

Published on 14 Sep 2020 - 20:34

score 276 · Answer 9 · 2020-10-02 08:08:51

276

Views

If P1 is an odd and P2 be an even permutation matrices of size n then, prove that det(2P1-2P2)=0

Published on 02 Oct 2020 - 8:08

score 300 · Answer 10 · 2020-10-03 18:48:39

300

Views

Given two Permutation Matrices, $P_1$ and $P_2$, when is $P_1P_2 = P_2P_1$?

Published on 03 Oct 2020 - 18:48

score 254 · Answer 11 · 2020-10-11 22:55:40

254

Views

Physical interpretation of permutation matrix

Published on 11 Oct 2020 - 22:55

score 343 · Answer 12 · 2020-10-17 08:34:46

343

Views

Proof that $A\in M_{n\times n}\mathbb{R}$ is a permutation matrix if and only if it is the product of elementary matrices of type $P_{ij}$.

Published on 17 Oct 2020 - 8:34

score 130 · Answer 13 · 2020-11-07 03:02:52

130

Views

Is there an operation over a finite set of integers (which size is $2^{128}$, or a power of two) that makes a non-abelian group?

Published on 07 Nov 2020 - 3:02

score 688 · Answer 14 · 2020-11-12 10:23:57

688

Views

Trace of permutation matrix

Published on 12 Nov 2020 - 10:23

score 911 · Answer 15 · 2020-11-14 00:58:54

911

Views

Conjugation under Permutation Matrices

Published on 14 Nov 2020 - 0:58

List Question

A continous extension of the group of permutation matrices

Is a square commutation matrix positive semidefinite?

Calculating determinants from matrices

Do commuting matrices with real and complex eigenvectors still share eigenvectors?

Linear Algebra: $n!$ permutation matrices proof, and amount of permutation matrices with $x$ row exchanges from $I$

Given an $n\times n$ matrix A with rows that are some permutation of $I_n$, find the smallest integer $m$ such that $A^m = I_n$

Invariant subspaces to the permuting action of the alternating group.

Intuitive explanation for inverse of a permutation matrix

If P1 is an odd and P2 be an even permutation matrices of size n then, prove that det(2P1-2P2)=0

Given two Permutation Matrices, $P_1$ and $P_2$, when is $P_1P_2 = P_2P_1$?

Physical interpretation of permutation matrix

Proof that $A\in M_{n\times n}\mathbb{R}$ is a permutation matrix if and only if it is the product of elementary matrices of type $P_{ij}$.

Is there an operation over a finite set of integers (which size is $2^{128}$, or a power of two) that makes a non-abelian group?

Trace of permutation matrix

Conjugation under Permutation Matrices

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