List questions from matrix-equations

Published on 15 Apr 2026 - 15:02

87

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Simple Matrix inequality

Published on 29 Apr 2026 - 22:45

41

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Equation with matrix minors

Published on 09 Apr 2026 - 21:13

57

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Solving linear matrix equation $BX=A-BX$

Published on 12 Apr 2026 - 14:47

89

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Which norm should I use when mixing a vector and matrix?

Published on 11 Apr 2026 - 4:11

29

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$\partial_{\mu} \exp[X] = \int_{0}^{1} d \alpha \exp[\alpha X] \partial_{\mu}{X} \exp[(1-\alpha)X]$

Published on 29 Apr 2026 - 22:46

478

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Generalised Woodbury matrix identity

Published on 18 Mar 2026 - 3:36

65

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How to simplify this matrix equation?

Published on 09 Apr 2026 - 8:27

56

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If $A + tB$ is similar to $A$ for infinitely many values of $t$, where $A$ is diagonalizable, is $B$ necessarily equal to $0$?

Published on 16 Apr 2026 - 5:22

250

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Showing that $\mathbf{X}^{2} + \mathbf{X} = \mathbf{A}$ has a solution

Published on 15 Apr 2026 - 11:00

43

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How can I investigate branches of solutions to polynomial matrix equations?

Published on 11 Apr 2026 - 2:09

207

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Lower and upper bounds of eigenvalues of the solution $P=P^T>0$ of the Lyapunov equation

Published on 15 Apr 2026 - 12:50

38

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Is $S^TD^2S\succcurlyeq(S^TDS)^2$ true if $S^TS=I$ and $D\succcurlyeq0$ diagonal?

Published on 13 Apr 2026 - 5:14

56

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Approximation of Woodbury matrix identity

Published on 09 Apr 2026 - 17:34

56

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How could I find all the possible scores for a test given that correct answers are 1 point, skipped answers are 0, & wrong answers are -0.25 points?

Published on 15 Apr 2026 - 12:45

List Question

Square matrix notation (orthogonal superscript)

Simple Matrix inequality

Equation with matrix minors

Solving linear matrix equation $BX=A-BX$

Which norm should I use when mixing a vector and matrix?

$\partial_{\mu} \exp[X] = \int_{0}^{1} d \alpha \exp[\alpha X] \partial_{\mu}{X} \exp[(1-\alpha)X]$

Generalised Woodbury matrix identity

How to simplify this matrix equation?

If $A + tB$ is similar to $A$ for infinitely many values of $t$, where $A$ is diagonalizable, is $B$ necessarily equal to $0$?

Showing that $\mathbf{X}^{2} + \mathbf{X} = \mathbf{A}$ has a solution

How can I investigate branches of solutions to polynomial matrix equations?

Lower and upper bounds of eigenvalues of the solution $P=P^T>0$ of the Lyapunov equation

Is $S^TD^2S\succcurlyeq(S^TDS)^2$ true if $S^TS=I$ and $D\succcurlyeq0$ diagonal?

Approximation of Woodbury matrix identity

How could I find all the possible scores for a test given that correct answers are 1 point, skipped answers are 0, & wrong answers are -0.25 points?

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