List questions from matrix-decomposition

Published on 02 Sep 2019 - 2:53

630

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How will the singular values change after multiplying a rectangular orthogonal matrix?

Published on 26 Mar 2026 - 4:28

26

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Ensure that a specific matrix decomposition is unique

Published on 27 Mar 2026 - 5:36

320

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Hard Inverse Matrix calculation

Published on 04 Sep 2019 - 23:58

148

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Commutative matrices of a square matrix

Published on 07 Sep 2019 - 0:03

149

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Matrices with a LU decomposition are dense in GL(n)

Published on 08 Sep 2019 - 0:44

2.4k

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Proof of the CS (cosine-sine) matrix decomposition

Published on 26 Mar 2026 - 17:14

31

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Is it possible to go from Eigenvectors to the original nxn matrix from which it was decomposed?

Published on 08 Sep 2019 - 17:35

18

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Rewrite $u_m=(e_m^T A v)^k, \, m=1,\ldots, n$

Published on 08 Sep 2019 - 21:06

55

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Properties of binary matrix whose entries are subset inclusion

Published on 10 Sep 2019 - 4:31

65

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Show that for any invertible $A$, if $P\equiv\sqrt{A^\dagger A}$ then $U\equiv A P^{-1}$ is unitary

Published on 12 Sep 2019 - 19:47

99

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Matrix on both sides of an equation with no inverse

Published on 16 Sep 2019 - 17:23

628

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A non-singular matrix can be factored uniquely into $LDU.$

Published on 16 Sep 2019 - 18:06

2.6k

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Projection Matrix Expressed as QR Identity

Published on 26 Mar 2026 - 17:18

1.9k

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Column rank of a rectangular matrix with number of columns is greater than the number of rows?

Published on 26 Mar 2026 - 4:36

List Question

How to decompose a 2 x 2 matrix into projection matrices from its eigenvalues, eigenvectors

How will the singular values change after multiplying a rectangular orthogonal matrix?

Ensure that a specific matrix decomposition is unique

Hard Inverse Matrix calculation

Commutative matrices of a square matrix

Matrices with a LU decomposition are dense in GL(n)

Proof of the CS (cosine-sine) matrix decomposition

Is it possible to go from Eigenvectors to the original nxn matrix from which it was decomposed?

Rewrite $u_m=(e_m^T A v)^k, \, m=1,\ldots, n$

Properties of binary matrix whose entries are subset inclusion

Show that for any invertible $A$, if $P\equiv\sqrt{A^\dagger A}$ then $U\equiv A P^{-1}$ is unitary

Matrix on both sides of an equation with no inverse

A non-singular matrix can be factored uniquely into $LDU.$

Projection Matrix Expressed as QR Identity

Column rank of a rectangular matrix with number of columns is greater than the number of rows?

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