Question

Is the condition number of a 2x2 block symmetric matrix greater than the condition number of its upper left hand block?

score 454 · Answer 1 · 2026-03-25 05:10:01

454

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Is the condition number of a 2x2 block symmetric matrix greater than the condition number of its upper left hand block?

Published on 25 Mar 2026 - 5:10

score 176 · Answer 2 · 2019-05-11 02:12:16

176

Views

Show that the largest eigenvalue of $A$ lies in the given interval

Published on 11 May 2019 - 2:12

score 126 · Answer 3 · 2019-05-11 17:41:15

126

Views

Determining eigenvalues of sum of 2 matrices, and then evaluating whether the limit exists

Published on 11 May 2019 - 17:41

score 1k · Answer 4 · 2026-03-25 12:19:25

1k

Views

What is the intuition behind having upperbound on eigenvalues of Hessian?

Published on 25 Mar 2026 - 12:19

score 393 · Answer 5 · 2019-05-12 06:26:32

393

Views

Why do you need to make sure the eigen vectors are orthonormal when trying to diagonalise a hermitian?

Published on 12 May 2019 - 6:26

score 22 · Answer 6 · 2026-04-03 01:54:48

22

Views

Inner products of of two vectors which are both orthogonal to a third vector.

Published on 03 Apr 2026 - 1:54

score 262 · Answer 7 · 2019-05-12 10:42:58

262

Views

Simplify the characteristic polynomial

Published on 12 May 2019 - 10:42

score 108 · Answer 8 · 2026-03-27 14:11:06

108

Views

A problem with eigenvectors of a Hermitian(?) Matrix

Published on 27 Mar 2026 - 14:11

score 206 · Answer 9 · 2019-05-12 16:54:13

206

Views

Find a rank one non negative matrix $C$ such that the Matrix $B+C$ will have eigenvalues $13,2,-1$

Published on 12 May 2019 - 16:54

score 149 · Answer 10 · 2026-03-25 13:56:54

149

Views

Given a scalar field, how to show that the eigenvalues of its Hessian are bounded?

Published on 25 Mar 2026 - 13:56

score 339 · Answer 11 · 2026-03-27 00:04:12

339

Views

Eigendecomposition of a matrix (what assumptions need to be made)

Published on 27 Mar 2026 - 0:04

score 2.2k · Answer 12 · 2026-03-25 11:09:58

2.2k

Views

Eigenvectors and invariant subspaces

Published on 25 Mar 2026 - 11:09

score 447 · Answer 13 · 2026-03-27 22:03:27

447

Views

Sturm-Liouville differential equation eigenvalue problem

Published on 27 Mar 2026 - 22:03

score 73 · Answer 14 · 2026-03-26 17:32:15

73

Views

(real symmetric matrices) does orthogonality of eigenvectors (distinct eigenvalues) depend on choice of basis?

Published on 26 Mar 2026 - 17:32

score 387 · Answer 15 · 2026-03-25 16:01:43

387

Views

eigenvalues of a direct sum of matrices

Published on 25 Mar 2026 - 16:01

List Question

Is the condition number of a 2x2 block symmetric matrix greater than the condition number of its upper left hand block?

Show that the largest eigenvalue of $A$ lies in the given interval

Determining eigenvalues of sum of 2 matrices, and then evaluating whether the limit exists

What is the intuition behind having upperbound on eigenvalues of Hessian?

Why do you need to make sure the eigen vectors are orthonormal when trying to diagonalise a hermitian?

Inner products of of two vectors which are both orthogonal to a third vector.

Simplify the characteristic polynomial

A problem with eigenvectors of a Hermitian(?) Matrix

Find a rank one non negative matrix $C$ such that the Matrix $B+C$ will have eigenvalues $13,2,-1$

Given a scalar field, how to show that the eigenvalues of its Hessian are bounded?

Eigendecomposition of a matrix (what assumptions need to be made)

Eigenvectors and invariant subspaces

Sturm-Liouville differential equation eigenvalue problem

(real symmetric matrices) does orthogonality of eigenvectors (distinct eigenvalues) depend on choice of basis?

eigenvalues of a direct sum of matrices

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