Question

A bit of amorphic question about SVD

score 18 · Answer 1 · 2026-03-18 00:43:16

18

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A bit of amorphic question about SVD

Published on 18 Mar 2026 - 0:43

score 571 · Answer 2 · 2021-04-07 16:09:55

571

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Change of smallest/largest singular value of matrix when replacing one column?

Published on 07 Apr 2021 - 16:09

score 64 · Answer 3 · 2021-04-10 03:03:54

64

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Matrix reconstruction puzzle

Published on 10 Apr 2021 - 3:03

score 201 · Answer 4 · 2026-03-26 12:37:57

201

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How is SVD better than Gaussian elimination in finding the rank of a matrix?

Published on 26 Mar 2026 - 12:37

score 55 · Answer 5 · 2021-05-04 14:44:38

55

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Trying to understand why the largest singular value of $M_n^{-1}$ is $1.4286$ no matter what $n$ I choose

Published on 04 May 2021 - 14:44

score 231 · Answer 6 · 2021-05-10 13:30:36

231

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Fast way to numerically compute smallest non-zero singular value for implicit matrix A

Published on 10 May 2021 - 13:30

score 205 · Answer 7 · 2021-05-18 06:22:21

205

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Find all $x\in\mathbb{C^n}$ such that $||Ax||_2=1$ and $||x||_2=1$

Published on 18 May 2021 - 6:22

score 420 · Answer 8 · 2026-03-26 14:33:02

420

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Relationship between matrices whose singular values are the same

Published on 26 Mar 2026 - 14:33

score 325 · Answer 9 · 2021-06-01 18:31:59

325

Views

Expected norm of matrix product with random unit vector

Published on 01 Jun 2021 - 18:31

score 73 · Answer 10 · 2021-06-03 08:11:08

73

Views

$\|K\|=\max_{j}s_{j}(K)$ for Compact Operator

Published on 03 Jun 2021 - 8:11

score 75 · Answer 11 · 2021-06-06 16:11:35

75

Views

How can I prove a randomly generated matrix has distinct non-zero eigenvalues?

Published on 06 Jun 2021 - 16:11

score 258 · Answer 12 · 2026-03-26 01:11:05

258

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Minimize $x^(A+A^)x$ such that $x^A^Ax=1$ and $x^*x=1$

Published on 26 Mar 2026 - 1:11

score 151 · Answer 13 · 2021-06-14 18:57:28

151

Views

In singular value decomposition, is there a difference between starting with transpose(A) * A or A * transpose(A)?

Published on 14 Jun 2021 - 18:57

score 1.2k · Answer 14 · 2021-07-02 00:43:50

1.2k

Views

When do Linear Transformations NOT preserve angles between vectors? Doesn't the SVD tell us all linear transformations preserve angles?

Published on 02 Jul 2021 - 0:43

score 602 · Answer 15 · 2021-07-23 20:02:25

602

Views

Why is a left-singular vector in the kernel, and a right-singular vector in the cokernel?

Published on 23 Jul 2021 - 20:02

List Question

A bit of amorphic question about SVD

Change of smallest/largest singular value of matrix when replacing one column?

Matrix reconstruction puzzle

How is SVD better than Gaussian elimination in finding the rank of a matrix?

Trying to understand why the largest singular value of $M_n^{-1}$ is $1.4286$ no matter what $n$ I choose

Fast way to numerically compute smallest non-zero singular value for implicit matrix A

Find all $x\in\mathbb{C^n}$ such that $||Ax||_2=1$ and $||x||_2=1$

Relationship between matrices whose singular values are the same

Expected norm of matrix product with random unit vector

$\|K\|=\max_{j}s_{j}(K)$ for Compact Operator

How can I prove a randomly generated matrix has distinct non-zero eigenvalues?

Minimize $x^(A+A^)x$ such that $x^A^Ax=1$ and $x^*x=1$

In singular value decomposition, is there a difference between starting with transpose(A) * A or A * transpose(A)?

When do Linear Transformations NOT preserve angles between vectors? Doesn't the SVD tell us all linear transformations preserve angles?

Why is a left-singular vector in the kernel, and a right-singular vector in the cokernel?

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