List questions from matrices

Published on 01 Apr 2026 - 3:07

386

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Show that 1 is an eigenvalue of the square of a unitary matrix.

Published on 27 Mar 2026 - 1:53

353

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Evaluate a determinant with $\sin$

Published on 01 Apr 2026 - 5:18

904

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Projecting vectors onto line (finding matrix associated with transformation)

Published on 26 Mar 2026 - 20:44

211

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Does every polynomial with a Perron root have a primitive matrix representation?

Published on 22 Mar 2026 - 14:56

1.3k

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proving there exists a non zero polynomial for which B has a root

Published on 26 Mar 2026 - 2:44

469

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Rank of Matrix , Intersection of 3 planes

Published on 30 Mar 2026 - 4:24

566

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Derivative of square of skew symmetric matrix times a vector wrt the argument of the skew symmetric argument

Published on 20 Mar 2026 - 7:05

1.7k

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Let $A,B$ be $m \times n$ and $n \times m$ matrices, respectively. Prove that if $m > n$, $AB$ is not invertible

Published on 24 Mar 2026 - 23:49

831

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About Matrix function on Jordan normal form

Published on 26 Mar 2026 - 2:59

131

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Unusual normalization related to the eigenvector perturbation

Published on 23 Mar 2026 - 1:28

590

Views

Matrix $A$ projects vectors orthogonally to the plane $y=z$. Find $A$.

Published on 20 Mar 2026 - 3:50

325

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State-Space Realization of a Matrix of Transfer Functions

Published on 20 Mar 2026 - 0:31

684

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Is the spectral radius less than $1$?

Published on 01 Apr 2026 - 3:23

2.4k

Views

Inequality regarding norm of a positive definite matrix

Published on 22 Mar 2026 - 9:50

List Question

Linear map, find a transformed matrix

Show that 1 is an eigenvalue of the square of a unitary matrix.

Evaluate a determinant with $\sin$

Projecting vectors onto line (finding matrix associated with transformation)

Does every polynomial with a Perron root have a primitive matrix representation?

proving there exists a non zero polynomial for which B has a root

Rank of Matrix , Intersection of 3 planes

Derivative of square of skew symmetric matrix times a vector wrt the argument of the skew symmetric argument

Let $A,B$ be $m \times n$ and $n \times m$ matrices, respectively. Prove that if $m > n$, $AB$ is not invertible

About Matrix function on Jordan normal form

Unusual normalization related to the eigenvector perturbation

Matrix $A$ projects vectors orthogonally to the plane $y=z$. Find $A$.

State-Space Realization of a Matrix of Transfer Functions

Is the spectral radius less than $1$?

Inequality regarding norm of a positive definite matrix

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