List questions from diagonalization

Published on 10 May 2026 - 12:44

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A real upper-triangular matrix commutes with its transpose then the matrix is diagonal.

Published on 14 Apr 2026 - 13:26

53

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Random non-diagonal diagonalizable matrix with negative eigenvals to only reals

Published on 15 Apr 2026 - 3:40

205

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Diagonalizable matrices with same geometric multiplicity for every eigenvalue similar?

Published on 23 Apr 2026 - 12:50

91

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Understanding repeated Eigen values

Published on 09 Apr 2026 - 11:35

64

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Matrix functions which are not scalar coefficient power series expansions.

Published on 12 Apr 2026 - 13:00

270

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Find the eigenvalues of $A$?

Published on 11 May 2026 - 8:59

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Quadratic forms, change of variables

Published on 10 May 2026 - 19:03

839

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Find real number $a$ such that matrix $A$ is NOT diagonalisable

Published on 15 Apr 2026 - 13:31

484

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$A$ is diagonalizable, then exists $B^3=A$

Published on 14 Apr 2026 - 20:48

129

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Finding the third eigenvector of a diagonalizing matrix.

Published on 11 Apr 2026 - 17:53

327

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Characterization of Matrices with only one Element in every Row and Column

Published on 16 Apr 2026 - 23:11

276

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If $p_A(x) = x^4 (x+3)^2 (x-4)$ then $A$ is diagonalizable iff $\operatorname{Rank}(A) + \operatorname{Rank}(-3I-A) = 8$

Published on 16 Apr 2026 - 13:04

192

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Non-Negative Diagonalizable Matrices

Published on 13 Apr 2026 - 13:55

49

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Prove the existence of a matrix $C$ s.t. $C^3=A$

Published on 14 Apr 2026 - 23:37

List Question

Sufficient condition for a matrix to be diagonalizable and similar matrices

A real upper-triangular matrix commutes with its transpose then the matrix is diagonal.

Random non-diagonal diagonalizable matrix with negative eigenvals to only reals

Diagonalizable matrices with same geometric multiplicity for every eigenvalue similar?

Understanding repeated Eigen values

Matrix functions which are not scalar coefficient power series expansions.

Find the eigenvalues of $A$?

Quadratic forms, change of variables

Find real number $a$ such that matrix $A$ is NOT diagonalisable

$A$ is diagonalizable, then exists $B^3=A$

Finding the third eigenvector of a diagonalizing matrix.

Characterization of Matrices with only one Element in every Row and Column

If $p_A(x) = x^4 (x+3)^2 (x-4)$ then $A$ is diagonalizable iff $\operatorname{Rank}(A) + \operatorname{Rank}(-3I-A) = 8$

Non-Negative Diagonalizable Matrices

Prove the existence of a matrix $C$ s.t. $C^3=A$

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