List questions from permutation-matrices

Published on 25 Nov 2015 - 15:39

289

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How does a permutation $P$ affect the singular value $\sigma_{\text{max}}(Q^\top P^\top Q)$ for orthogonal $Q$?

Published on 17 Mar 2026 - 0:44

1.4k

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How many combinations of permutation matrices are there?

Published on 19 Mar 2016 - 5:50

556

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Permutation matrix homomorphism

Published on 02 Apr 2016 - 21:42

1.9k

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Is an orthogonal matrix necessarily a permutation matrix?

Published on 26 Feb 2026 - 19:34

2.4k

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$\{0,1\}$-matrix and permutation matrices

Published on 25 Mar 2026 - 11:01

147

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Are these two permutation matrices equivalent?

Published on 26 Apr 2013 - 17:07

115

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Whether solutions of a particular matrix equation are only the permutation matrices

Published on 29 May 2013 - 15:57

3.6k

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Determinant of elementary permutation matrix

Published on 22 Aug 2013 - 1:30

2.7k

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Characterizing sums of permutation matrices

Published on 27 Nov 2013 - 22:25

261

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Finding the permutation matrix that "cyclic shifts"

Published on 13 Apr 2017 - 21:30

465

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Find the number of $4 \times 4$ orthogonal matrices whose entries are either $0$ or $1$

Published on 03 Jun 2017 - 10:58

1.5k

Views

An orthogonal matrix with non-negative entries is a permutation matrix

Published on 07 Mar 2026 - 3:59

210

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Birkhoff decomposition with maximization objective.

Published on 22 Mar 2026 - 19:37

379

Views

How to prove every permutation matrix has some unity power?

Published on 10 Aug 2017 - 10:18

List Question

Which row exchanges will produce another Sudoku matrix?

How does a permutation $P$ affect the singular value $\sigma_{\text{max}}(Q^\top P^\top Q)$ for orthogonal $Q$?

How many combinations of permutation matrices are there?

Permutation matrix homomorphism

Is an orthogonal matrix necessarily a permutation matrix?

$\{0,1\}$-matrix and permutation matrices

Are these two permutation matrices equivalent?

Whether solutions of a particular matrix equation are only the permutation matrices

Determinant of elementary permutation matrix

Characterizing sums of permutation matrices

Finding the permutation matrix that "cyclic shifts"

Find the number of $4 \times 4$ orthogonal matrices whose entries are either $0$ or $1$

An orthogonal matrix with non-negative entries is a permutation matrix

Birkhoff decomposition with maximization objective.

How to prove every permutation matrix has some unity power?

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