List questions from matrix-equations

Published on 27 Apr 2019 - 4:41

319

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Matrix of a linear form

Published on 27 Apr 2019 - 13:17

145

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Could matrix powers be bounded?

Published on 28 Apr 2019 - 13:03

87

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If $x = 2$ is a root of $\det\left[\begin{smallmatrix}x&-6&-1\\2&-3x&x-3\\-3&2x&x+2\end{smallmatrix}\right]=0$, find other two roots

Published on 01 May 2019 - 5:58

60

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Bounds on $k=\frac{x^TBy}{x^Ty}$?

Published on 01 May 2019 - 6:06

77

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Unknown 3x3 matrix, how to identify its identity matrix

Published on 01 May 2019 - 11:07

1.6k

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Discrete-time LQR and solutions via LMI

Published on 25 Mar 2026 - 1:16

121

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If A and B are non-singular and n-square matrices. Show that $(I+BA)^{-1}=I-(((B^{-1})+A)^{-1})A$

Published on 28 Mar 2026 - 3:33

311

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Help solving a tricky matrix PDE coupled system

Published on 02 May 2019 - 10:17

302

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Question about Baker–Campbell–Hausdorff Formula

Published on 03 May 2019 - 8:05

40

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Under what conditions this equality holds?

Published on 03 May 2019 - 20:23

102

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What do these matrices converge to?

Published on 29 Mar 2026 - 2:45

164

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Find $P$ where $P^{-1}AP$ for a given matrix $A$

Published on 27 Mar 2026 - 0:02

104

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What is the meaning of "values coincides with the convex closure of the eigenvalues"?

Published on 27 Mar 2026 - 10:47

1.7k

Views

What is the meaning of a matrix eigenvalue to be 0? (Singular matrix, I know but what about it?)

Published on 25 Mar 2026 - 16:03

List Question

Find a basis of the following subspace in $\mathbb R^3$

Matrix of a linear form

Could matrix powers be bounded?

If $x = 2$ is a root of $\det\left[\begin{smallmatrix}x&-6&-1\\2&-3x&x-3\\-3&2x&x+2\end{smallmatrix}\right]=0$, find other two roots

Bounds on $k=\frac{x^TBy}{x^Ty}$?

Unknown 3x3 matrix, how to identify its identity matrix

Discrete-time LQR and solutions via LMI

If A and B are non-singular and n-square matrices. Show that $(I+BA)^{-1}=I-(((B^{-1})+A)^{-1})A$

Help solving a tricky matrix PDE coupled system

Question about Baker–Campbell–Hausdorff Formula

Under what conditions this equality holds?

What do these matrices converge to?

Find $P$ where $P^{-1}AP$ for a given matrix $A$

What is the meaning of "values coincides with the convex closure of the eigenvalues"?

What is the meaning of a matrix eigenvalue to be 0? (Singular matrix, I know but what about it?)

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