List questions from eigenvalues-eigenvectors

Published on 25 Mar 2026 - 4:54

36

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Is every $T$ s.t. $T:\mathbb{R^3} \to \mathbb{R^3}$ s.t. $T(w)=2w, \forall w \in W$ and $T(z) \notin W$ if $z \notin W$ necessarily triangulable?

Published on 25 Mar 2026 - 4:59

758

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Show that if $\lambda$ is a Real eigenvalue of U then $|\lambda| = 1$

Published on 25 Mar 2026 - 19:01

839

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Let $A \in \mathbb{C}^{n \times n}$ be hermitian. Prove all eigenvalues of $A$ are real...

Published on 20 May 2018 - 0:45

144

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Signature of scalar products with parameter

Published on 20 May 2018 - 19:09

118

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Eigenvectors of a vectorized tranpose matrix

Published on 25 Mar 2026 - 17:38

613

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Trace and Determinant of a linear map $T$ which is not necessarily diagonalizable

Published on 25 Mar 2026 - 16:01

104

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Question about eigenvalues of a matrix and powers and trace of a matrix

Published on 25 Mar 2026 - 16:02

190

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Distance between vectors in a high dimensional space

Published on 28 Mar 2026 - 14:18

580

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Diagonalizable block-diagonal matrix

Published on 25 Mar 2026 - 6:26

117

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A line through fixed points, in $\mathbb{P^2}$ , is a fixed line or an invariant one?

Published on 25 Mar 2026 - 4:57

32

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Let $V$ be the space of $n\times n$ matrices, $B$ a fixed matrix, prove that $L_B:A\mapsto BA$ and $B$ have the same eigenvalues.

Published on 22 May 2018 - 14:23

1.9k

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Meaning of $x^T A x$

Published on 26 Mar 2026 - 21:05

93

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How to find the eigenvectors of this matrix?

Published on 23 May 2018 - 3:20

338

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Are vectors generated from the same normal distribution linearly independent?

Published on 25 Mar 2026 - 9:35

List Question

Does this mean the zero matrix is diagonalizable.

Is every $T$ s.t. $T:\mathbb{R^3} \to \mathbb{R^3}$ s.t. $T(w)=2w, \forall w \in W$ and $T(z) \notin W$ if $z \notin W$ necessarily triangulable?

Show that if $\lambda$ is a Real eigenvalue of U then $|\lambda| = 1$

Let $A \in \mathbb{C}^{n \times n}$ be hermitian. Prove all eigenvalues of $A$ are real...

Signature of scalar products with parameter

Eigenvectors of a vectorized tranpose matrix

Trace and Determinant of a linear map $T$ which is not necessarily diagonalizable

Question about eigenvalues of a matrix and powers and trace of a matrix

Distance between vectors in a high dimensional space

Diagonalizable block-diagonal matrix

A line through fixed points, in $\mathbb{P^2}$ , is a fixed line or an invariant one?

Let $V$ be the space of $n\times n$ matrices, $B$ a fixed matrix, prove that $L_B:A\mapsto BA$ and $B$ have the same eigenvalues.

Meaning of $x^T A x$

How to find the eigenvectors of this matrix?

Are vectors generated from the same normal distribution linearly independent?

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