List questions from matrix-equations

Published on 30 Mar 2026 - 13:26

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Does the matrix equation $XA = XB$ always have a solution?

Published on 21 Mar 2017 - 19:08

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Convexity of matrix trace functions $A\mapsto \operatorname{Tr} (Bf(A))$

Published on 29 Mar 2026 - 20:45

20

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Equation with matrices

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Does $A^TA = \det(A) I$ imply anything significant?

Published on 26 Mar 2026 - 16:05

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Find minimum sum in matrix

Published on 26 Mar 2017 - 14:23

702

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Inscribed hypersphere of a simplex

Published on 26 Mar 2026 - 20:39

60

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Solutions of a matrix equation over $\mathbb{Z}$

Published on 07 Apr 2026 - 4:44

69

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solve $c_1, c_2, c_3$ for matrix so that it has infinite solutions and no solutions

Published on 28 Mar 2017 - 7:46

128

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How do I isolate $S$ in $P = \overline S - RSR^{\mathsf H}$?

Published on 29 Mar 2017 - 6:56

64

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A matrix similar to a one-rank matrix

Published on 30 Mar 2026 - 13:20

205

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How to find the derivative of a scalar function involving a Kronecker product with respect to a matrix

Published on 26 Mar 2026 - 1:11

144

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Contstruct $Q$ such as $Q^A-DQ^ =R$

Published on 30 Mar 2017 - 23:02

64

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How to determine $A\in S_n (\mathbb{R})$ such that $A^5=I_n$?

Published on 30 Mar 2026 - 1:47

715

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Convex conjugate of a matrix function

Published on 31 Mar 2017 - 17:04

List Question

$Ax=b$ has solution for all $b\in\mathbb{R}^m$ iff $A^Tx=0$ has only trivial solution

Does the matrix equation $XA = XB$ always have a solution?

Convexity of matrix trace functions $A\mapsto \operatorname{Tr} (Bf(A))$

Equation with matrices

Does $A^TA = \det(A) I$ imply anything significant?

Find minimum sum in matrix

Inscribed hypersphere of a simplex

Solutions of a matrix equation over $\mathbb{Z}$

solve $c_1, c_2, c_3$ for matrix so that it has infinite solutions and no solutions

How do I isolate $S$ in $P = \overline S - RSR^{\mathsf H}$?

A matrix similar to a one-rank matrix

How to find the derivative of a scalar function involving a Kronecker product with respect to a matrix

Contstruct $Q$ such as $Q^A-DQ^ =R$

How to determine $A\in S_n (\mathbb{R})$ such that $A^5=I_n$?

Convex conjugate of a matrix function

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