Question

How can we solve this matricial system?

score 57 · Answer 1 · 2026-04-12 02:20:31

57

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How can we solve this matricial system?

Published on 12 Apr 2026 - 2:20

score 220 · Answer 2 · 2026-04-18 20:16:20

220

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Searching an analogues for Schur complement

Published on 18 Apr 2026 - 20:16

score 507 · Answer 3 · 2026-04-23 18:45:42

507

Views

On the relation between traces and characteristic polynomials

Published on 23 Apr 2026 - 18:45

score 83 · Answer 4 · 2026-04-16 07:29:59

83

Views

If $\sigma:M_3\rightarrow S_3$ is a linear map such that $\sigma(PMP^{-1})=P\sigma(M)P^{-1}$, then $\sigma(M)=\ldots$

Published on 16 Apr 2026 - 7:29

score 378 · Answer 5 · 2026-04-14 16:56:14

378

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If $AB=BA$, prove that $ A=\begin{bmatrix} a & 0 \\ 0 & a \end{bmatrix} $

Published on 14 Apr 2026 - 16:56

score 906 · Answer 6 · 2026-04-12 08:24:15

906

Views

how to know the axes of an ellipse after rotation.

Published on 12 Apr 2026 - 8:24

score 44 · Answer 7 · 2026-04-15 05:46:51

44

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Does the sum of all tensor invariants have any meaning or application?

Published on 15 Apr 2026 - 5:46

score 102 · Answer 8 · 2026-04-16 12:29:13

102

Views

Given $A$, for how many $n$ integer $X^n=A$ is true for some $X$?

Published on 16 Apr 2026 - 12:29

score 219 · Answer 9 · 2026-04-14 13:20:14

219

Views

$\operatorname{trace}(B)>0$, and $C$ is a Hermitian positive definite, is $\operatorname{trace}(BC)\geq 0$?

Published on 14 Apr 2026 - 13:20

score 916 · Answer 10 · 2026-04-10 12:10:16

916

Views

How to use the basis in order to diagonalize the matrix

Published on 10 Apr 2026 - 12:10

score 1k · Answer 11 · 2026-04-15 14:37:03

1k

Views

Necessary and sufficient condition for a matrix to have postive eigenvalues

Published on 15 Apr 2026 - 14:37

score 86 · Answer 12 · 2026-04-13 14:10:10

86

Views

Counting Characteristic Polynomials?

Published on 13 Apr 2026 - 14:10

score 4.1k · Answer 13 · 2026-03-24 23:43:19

4.1k

Views

Matlab Code-Include Iteration to QR Algorithm Gram-Schmidt - The Iterations of A will converge to Eigenvalues

Published on 24 Mar 2026 - 23:43

score 42 · Answer 14 · 2026-04-10 14:44:51

42

Views

Relation between linear independence and matrix inversion

Published on 10 Apr 2026 - 14:44

score 1.1k · Answer 15 · 2026-04-08 18:01:42

1.1k

Views

How to understand that a normal matrix commutes with its adjoint, but a diagonalizable matrix may not?

Published on 08 Apr 2026 - 18:01

List Question

How can we solve this matricial system?

Searching an analogues for Schur complement

On the relation between traces and characteristic polynomials

If $\sigma:M_3\rightarrow S_3$ is a linear map such that $\sigma(PMP^{-1})=P\sigma(M)P^{-1}$, then $\sigma(M)=\ldots$

If $AB=BA$, prove that $ A=\begin{bmatrix} a & 0 \\ 0 & a \end{bmatrix} $

how to know the axes of an ellipse after rotation.

Does the sum of all tensor invariants have any meaning or application?

Given $A$, for how many $n$ integer $X^n=A$ is true for some $X$?

$\operatorname{trace}(B)>0$, and $C$ is a Hermitian positive definite, is $\operatorname{trace}(BC)\geq 0$?

How to use the basis in order to diagonalize the matrix

Necessary and sufficient condition for a matrix to have postive eigenvalues

Counting Characteristic Polynomials?

Matlab Code-Include Iteration to QR Algorithm Gram-Schmidt - The Iterations of A will converge to Eigenvalues

Relation between linear independence and matrix inversion

How to understand that a normal matrix commutes with its adjoint, but a diagonalizable matrix may not?

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