List questions from similar-matrices

Published on 16 Dec 2021 - 10:11

125

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About a very elementary method which determines if $A$ is similar to $B$ or not. Please tell me a linear algebra book which includes this method.

Published on 17 Dec 2021 - 10:18

163

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Finding the normalizer of $\left\{ \left(\begin{matrix} x &0 \\0 & y \end{matrix}\right) : x,y\in \mathbb R\setminus\{0\} \right\}$

Published on 29 Dec 2021 - 19:18

33

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A and B have identical singular-values and identical eigenvalues, are they unitary similar?

Published on 10 Jan 2022 - 16:25

53

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Is there a pair of two $2 \times 2$ complex matrices that are never simultaneously conjugate to real matrices

Published on 15 Jan 2022 - 18:05

69

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Unitarity similarity transformation

Published on 16 Jan 2022 - 23:30

70

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Problem of finding values of $ a $ for which two matrices are similar

Published on 23 Jan 2022 - 10:29

131

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How to show that the matrices $A$ and $B$ are similar?

Published on 26 Jan 2022 - 6:48

39

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Minimum perturbation to make two matrices similar

Published on 28 Jan 2022 - 3:14

12

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Simultaneous reduction to pseudo-permutations

Published on 26 Feb 2026 - 20:37

61

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Real Eigenvalues and Similarity

Published on 05 Feb 2022 - 20:39

64

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Determine if the following matrices are similar

Published on 08 Feb 2022 - 9:13

274

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Finding an operator C that satisfies AB=CA

Published on 23 Feb 2026 - 4:36

71

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Prove that $\begin{pmatrix} a & 0 \\ 0 & d \end{pmatrix}$ and $\begin{pmatrix} a & b \\ 0 & d \end{pmatrix}$ are similar iff $a \neq d$

Published on 04 Mar 2022 - 11:02

156

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If $K$ is an invertible matrix so $K+K^{-1}$ is diagonalizable, is $K$ necessarily diagonalizable?

Published on 29 Apr 2022 - 12:41

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Kernel PCA similarity matrix analogy

About a very elementary method which determines if $A$ is similar to $B$ or not. Please tell me a linear algebra book which includes this method.

Finding the normalizer of $\left\{ \left(\begin{matrix} x &0 \\0 & y \end{matrix}\right) : x,y\in \mathbb R\setminus\{0\} \right\}$

A and B have identical singular-values and identical eigenvalues, are they unitary similar?

Is there a pair of two $2 \times 2$ complex matrices that are never simultaneously conjugate to real matrices

Unitarity similarity transformation

Problem of finding values of $ a $ for which two matrices are similar

How to show that the matrices $A$ and $B$ are similar?

Minimum perturbation to make two matrices similar

Simultaneous reduction to pseudo-permutations

Real Eigenvalues and Similarity

Determine if the following matrices are similar

Finding an operator C that satisfies AB=CA

Prove that $\begin{pmatrix} a & 0 \\ 0 & d \end{pmatrix}$ and $\begin{pmatrix} a & b \\ 0 & d \end{pmatrix}$ are similar iff $a \neq d$

If $K$ is an invertible matrix so $K+K^{-1}$ is diagonalizable, is $K$ necessarily diagonalizable?

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