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$3\times3$ matrix of distinct positive primes with determinant $0$

score 1.4k · Answer 1 · 2026-03-25 09:27:26

1.4k

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$3\times3$ matrix of distinct positive primes with determinant $0$

Published on 25 Mar 2026 - 9:27

score 1k · Answer 2 · 2026-03-25 17:40:29

1k

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Describe $\det(A^*)$ in terms of $\det(A)$

Published on 25 Mar 2026 - 17:40

score 6.5k · Answer 3 · 2026-03-29 08:35:28

6.5k

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For what b does Ax = b have infinitely many solutions

Published on 29 Mar 2026 - 8:35

score 78 · Answer 4 · 2026-03-25 16:00:28

78

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Theory of Matrices proof for basis, spanning set, linear independence

Published on 25 Mar 2026 - 16:00

score 68 · Answer 5 · 2026-03-29 12:04:43

68

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Matrix exponential for $A=\begin{pmatrix}A_{11} & A_{12} \\ 0 & A_{22}\\ \end{pmatrix}$

Published on 29 Mar 2026 - 12:04

score 874 · Answer 6 · 2026-03-25 20:35:12

874

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Obtaining the values of $a$ and $b$ given their eigenvector and matrix

Published on 25 Mar 2026 - 20:35

score 1.2k · Answer 7 · 2026-03-26 04:32:27

1.2k

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General form of left and right eigenvectors of upper triangular matrices

Published on 26 Mar 2026 - 4:32

score 364 · Answer 8 · 2026-03-26 04:34:05

364

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Eigenvalues of the sum of full rank permutation matrices

Published on 26 Mar 2026 - 4:34

score 125 · Answer 9 · 2026-03-25 01:24:07

125

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Prove that $\lVert X\rVert^2 =\sum_{i,j=1}^\infty\lvert\langle u_i,Xu_j\rangle\rvert^2$.

Published on 25 Mar 2026 - 1:24

score 406 · Answer 10 · 2026-03-27 11:07:39

406

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Which statement is false ?(Linear algebra problem)

Published on 27 Mar 2026 - 11:07

score 33 · Answer 11 · 2026-03-26 11:00:04

33

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Classify the states of the markov chain which is given by two matrices

Published on 26 Mar 2026 - 11:00

score 681 · Answer 12 · 2026-03-25 16:06:12

681

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Sinkhorn Knopp algorithm convergence proof

Published on 25 Mar 2026 - 16:06

score 1.8k · Answer 13 · 2026-03-28 01:10:41

1.8k

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How to create the Smith Mcmillan form of a polynomial matrix?

Published on 28 Mar 2026 - 1:10

score 501 · Answer 14 · 2026-03-26 11:06:07

501

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Given is a Markov chain - classify its states

Published on 26 Mar 2026 - 11:06

score 97 · Answer 15 · 2026-03-27 10:24:21

97

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Is there a "standard" name for $n \times n$-matrices whose square is $-1$ times the identity matrix?

Published on 27 Mar 2026 - 10:24

List Question

$3\times3$ matrix of distinct positive primes with determinant $0$

Describe $\det(A^*)$ in terms of $\det(A)$

For what b does Ax = b have infinitely many solutions

Theory of Matrices proof for basis, spanning set, linear independence

Matrix exponential for $A=\begin{pmatrix}A_{11} & A_{12} \\ 0 & A_{22}\\ \end{pmatrix}$

Obtaining the values of $a$ and $b$ given their eigenvector and matrix

General form of left and right eigenvectors of upper triangular matrices

Eigenvalues of the sum of full rank permutation matrices

Prove that $\lVert X\rVert^2 =\sum_{i,j=1}^\infty\lvert\langle u_i,Xu_j\rangle\rvert^2$.

Which statement is false ?(Linear algebra problem)

Classify the states of the markov chain which is given by two matrices

Sinkhorn Knopp algorithm convergence proof

How to create the Smith Mcmillan form of a polynomial matrix?

Given is a Markov chain - classify its states

Is there a "standard" name for $n \times n$-matrices whose square is $-1$ times the identity matrix?

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