List questions from matrices

Published on 29 Apr 2026 - 12:27

80

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Find $\dim\ker(A-B)$ if the minimal polynomials of $A$ and $B$ are given

Published on 17 Apr 2026 - 15:11

6.7k

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Trace of product of two Hermitian matrices

Published on 11 Apr 2026 - 18:41

44

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Non-PSD matrix with two different PSD submatrixes

Published on 25 Mar 2026 - 2:58

304

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Are simultaneously diagonalizable matrices dense in $(M_{n\times n})^k$?

Published on 13 Apr 2026 - 23:11

59

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$AA^{\#}=A^{\#}A$ , Complex Matrices

Published on 14 Apr 2026 - 20:01

327

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Average value of the pivots found during LU factorization.

Published on 13 Apr 2026 - 5:05

195

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Surjectivity and Orthogonal Complements with Quadratic Forms

Published on 16 Apr 2026 - 7:27

1.7k

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Find all matrices that commute with $A$

Published on 14 Apr 2026 - 4:37

81

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Separation of inverse of invertible addition of matrices

Published on 12 Apr 2026 - 12:04

456

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Computing the matrix condition number: forward stability necessary?

Published on 27 Mar 2026 - 11:44

108

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Find the Dimension of the Centraliser of Matrix $A$

Published on 12 Apr 2026 - 17:47

221

Views

Positive semidefinite versus all the eigenvalues having non-negative real parts

Published on 25 Mar 2026 - 4:38

235

Views

RREF and determinant

Published on 13 Apr 2026 - 5:29

884

Views

Matrices $M$ and $N$ with $MN\neq NM$.

Published on 14 Apr 2026 - 20:43

List Question

Inverse of an infinite matrix with factorial entries

Find $\dim\ker(A-B)$ if the minimal polynomials of $A$ and $B$ are given

Trace of product of two Hermitian matrices

Non-PSD matrix with two different PSD submatrixes

Are simultaneously diagonalizable matrices dense in $(M_{n\times n})^k$?

$AA^{\#}=A^{\#}A$ , Complex Matrices

Average value of the pivots found during LU factorization.

Surjectivity and Orthogonal Complements with Quadratic Forms

Find all matrices that commute with $A$

Separation of inverse of invertible addition of matrices

Computing the matrix condition number: forward stability necessary?

Find the Dimension of the Centraliser of Matrix $A$

Positive semidefinite versus all the eigenvalues having non-negative real parts

RREF and determinant

Matrices $M$ and $N$ with $MN\neq NM$.

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