List questions from diagonalization

Published on 15 Aug 2022 - 10:57

118

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How can I prove that a linear map $f$ where $f^3=f$ is diagonializeable?

Published on 18 Aug 2022 - 13:12

102

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Diagonalizable matrices over $\mathbb{C}$

Published on 19 Aug 2022 - 0:18

344

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Can a Unitary matrix be non-diagonalizable?

Published on 27 Mar 2026 - 19:30

117

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Let $C \in \mathbb{R}^{4 \times 4}$ satisfy $C^3 + 6C = 5C^2$. Prove that $C$ is diagonalizable over the real numbers

Published on 29 Aug 2022 - 22:56

543

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Is any symmetric matrix of which its diagonalvector equals its eigenvalues a diagonal matrix?

Published on 30 Aug 2022 - 19:02

94

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Diagonalizing a Hermitian Matrix

Published on 27 Mar 2026 - 10:42

38

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Diagonalization of a transposed square root matrix

Published on 07 Sep 2022 - 0:18

318

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Is the Representation Matrix of Every Quantum Channel Diagonalizable?

Published on 27 Mar 2026 - 8:41

81

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On the spectral decomposition of a positive semidefinite matrix

Published on 31 Mar 2026 - 7:06

169

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Bijection invalidating cantor's diagonalization argument?

Published on 18 Sep 2022 - 21:00

176

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Writing a real symmetric matrix $U^tAU$

Published on 06 Apr 2026 - 13:07

151

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Determining an integral positive-definite symmetric matrix is diagonalizable over $\Bbb Z$

Published on 31 Mar 2026 - 6:00

72

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Can a certain matrix $A$ be diagonalized by a rotation matrix?

Published on 29 Sep 2022 - 1:47

134

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Eigenvalues of "almost" block diagonal matrix

Published on 29 Mar 2026 - 17:31

List Question

When is ${\bf u} {\bf v}^*$ unitarily diagonalizable?

How can I prove that a linear map $f$ where $f^3=f$ is diagonializeable?

Diagonalizable matrices over $\mathbb{C}$

Can a Unitary matrix be non-diagonalizable?

Let $C \in \mathbb{R}^{4 \times 4}$ satisfy $C^3 + 6C = 5C^2$. Prove that $C$ is diagonalizable over the real numbers

Is any symmetric matrix of which its diagonalvector equals its eigenvalues a diagonal matrix?

Diagonalizing a Hermitian Matrix

Diagonalization of a transposed square root matrix

Is the Representation Matrix of Every Quantum Channel Diagonalizable?

On the spectral decomposition of a positive semidefinite matrix

Bijection invalidating cantor's diagonalization argument?

Writing a real symmetric matrix $U^tAU$

Determining an integral positive-definite symmetric matrix is diagonalizable over $\Bbb Z$

Can a certain matrix $A$ be diagonalized by a rotation matrix?

Eigenvalues of "almost" block diagonal matrix

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