List questions from matrices

Published on 14 Apr 2026 - 9:22

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Is there any relation between norm and determinant of matrix?

Published on 11 Apr 2026 - 19:28

2.5k

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Prove matrix $A$ is diagonalizable if and only if each eigenvalue has equal geometric and algebraic multiplicity.

Published on 15 Apr 2026 - 3:17

30

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What is the image of a strip in $\mathbb{R}^2$ under a $2 \times 2$ hyperbolic matrix?

Published on 11 Apr 2026 - 20:26

58

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Vector as whole differentiated has different result compared to element-wise

Published on 14 Apr 2026 - 4:00

178

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Is the kernel of a function depending on the basis?

Published on 11 Apr 2026 - 9:32

277

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Basis for Kernel and Trace of Square Matrices

Published on 12 Apr 2026 - 15:08

761

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automorphism group of a matrix algebra

Published on 14 Apr 2026 - 9:26

292

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Help with eigen vectors and Eigenvalues

Published on 13 Apr 2026 - 10:55

3.8k

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How do unitary matrices preserve the magnitude of unit vectors?

Published on 20 Apr 2026 - 7:55

74

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How to find the inverse of $(A\otimes A)(B\oplus B)^{-1}(A\otimes A)+I$ without forming the Kronecker product?

Published on 13 Apr 2026 - 14:21

288

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Is there a way to compute $(A\otimes B)x$ quickly without forming the Kronecker product?

Published on 13 Apr 2026 - 3:26

91

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Find the Determinant when $p$ and $q$ are roots of $x^2-2x+5=0$

Published on 16 Apr 2026 - 19:03

77

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A problem regarding Linear Transformation

Published on 09 Apr 2026 - 7:30

253

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Notation for transpose of a matrix row

Published on 17 Apr 2026 - 1:11

List Question

Prove a rank equality for PSD matrices

Is there any relation between norm and determinant of matrix?

Prove matrix $A$ is diagonalizable if and only if each eigenvalue has equal geometric and algebraic multiplicity.

What is the image of a strip in $\mathbb{R}^2$ under a $2 \times 2$ hyperbolic matrix?

Vector as whole differentiated has different result compared to element-wise

Is the kernel of a function depending on the basis?

Basis for Kernel and Trace of Square Matrices

automorphism group of a matrix algebra

Help with eigen vectors and Eigenvalues

How do unitary matrices preserve the magnitude of unit vectors?

How to find the inverse of $(A\otimes A)(B\oplus B)^{-1}(A\otimes A)+I$ without forming the Kronecker product?

Is there a way to compute $(A\otimes B)x$ quickly without forming the Kronecker product?

Find the Determinant when $p$ and $q$ are roots of $x^2-2x+5=0$

A problem regarding Linear Transformation

Notation for transpose of a matrix row

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