Question

Right inverse of an under-determined linear system

score 256 · Answer 1 · 2026-04-13 21:51:54

256

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Right inverse of an under-determined linear system

Published on 13 Apr 2026 - 21:51

score 309 · Answer 2 · 2026-04-13 18:45:57

309

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How does the phase of the determinant of a complex matrix relate to the phase of the original matrix entries?

Published on 13 Apr 2026 - 18:45

score 192 · Answer 3 · 2026-04-29 12:53:13

192

Views

The location of the diagonal elements in the half-vectorization of a matrix

Published on 29 Apr 2026 - 12:53

score 109 · Answer 4 · 2026-04-15 03:21:34

109

Views

For real square matrices $A_0,A_1$ with $(A^{T}_0+A_0)+(A^{T}_{1}+A_1)\leq{-\gamma{I}}$, is it possible to prove the following inequality?

Published on 15 Apr 2026 - 3:21

score 588 · Answer 5 · 2026-04-17 09:59:15

588

Views

Find the determinant of a $3AA^t$

Published on 17 Apr 2026 - 9:59

score 288 · Answer 6 · 2026-04-14 21:14:13

288

Views

Relative eigenvalues and the Rayleigh quotient in tensor notation

Published on 14 Apr 2026 - 21:14

score 45 · Answer 7 · 2026-03-25 04:40:36

45

Views

A question about the eigenvactors of positive semi-definite matrices

Published on 25 Mar 2026 - 4:40

score 766 · Answer 8 · 2026-03-25 01:38:28

766

Views

Understanding the concept of isomorphism between Hom(V,W) and $M_{m\times n}$

Published on 25 Mar 2026 - 1:38

score 144 · Answer 9 · 2026-04-17 14:05:54

144

Views

Why is $\left(I - M M^T \right)^{-1} M = M\left(I - M^T M \right)^{-1}$

Published on 17 Apr 2026 - 14:05

score 26 · Answer 10 · 2026-04-13 06:13:06

26

Views

I have a set with two vectors in $R^3$. What method should I use to find the vectors orthogonal to both in the original set?

Published on 13 Apr 2026 - 6:13

score 844 · Answer 11 · 2026-04-12 07:28:01

844

Views

Name of a matrix with one column and row removed

Published on 12 Apr 2026 - 7:28

score 119 · Answer 12 · 2026-04-14 13:03:26

119

Views

Proof of linear transform being a basis for set $L(U,V)$ meyer's book

Published on 14 Apr 2026 - 13:03

score 95 · Answer 13 · 2026-04-16 19:39:56

95

Views

Is $s(x)$ a linear combination of $a \cdot p(x) $and $b \cdot q(x)$

Published on 16 Apr 2026 - 19:39

score 41 · Answer 14 · 2026-04-13 16:36:45

41

Views

How to prove the correctness of one way of computing $\sum_{i = 1}^N \sum_{j = 1}^M \langle U_i, V_j \rangle^2$

Published on 13 Apr 2026 - 16:36

score 127 · Answer 15 · 2026-04-15 20:26:30

127

Views

Finding a polynomial $t(x)$ such that $r(x)$ is a linear combination of $p(x)$, $q(x)$ and $t(x).$

Published on 15 Apr 2026 - 20:26

List Question

Right inverse of an under-determined linear system

How does the phase of the determinant of a complex matrix relate to the phase of the original matrix entries?

The location of the diagonal elements in the half-vectorization of a matrix

For real square matrices $A_0,A_1$ with $(A^{T}_0+A_0)+(A^{T}_{1}+A_1)\leq{-\gamma{I}}$, is it possible to prove the following inequality?

Find the determinant of a $3AA^t$

Relative eigenvalues and the Rayleigh quotient in tensor notation

A question about the eigenvactors of positive semi-definite matrices

Understanding the concept of isomorphism between Hom(V,W) and $M_{m\times n}$

Why is $\left(I - M M^T \right)^{-1} M = M\left(I - M^T M \right)^{-1}$

I have a set with two vectors in $R^3$. What method should I use to find the vectors orthogonal to both in the original set?

Name of a matrix with one column and row removed

Proof of linear transform being a basis for set $L(U,V)$ meyer's book

Is $s(x)$ a linear combination of $a \cdot p(x) $and $b \cdot q(x)$

How to prove the correctness of one way of computing $\sum_{i = 1}^N \sum_{j = 1}^M \langle U_i, V_j \rangle^2$

Finding a polynomial $t(x)$ such that $r(x)$ is a linear combination of $p(x)$, $q(x)$ and $t(x).$

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