Question

Rank of $xy^{\mathrm T}+yx^{\mathrm T}$

score 1k · Answer 1 · 2019-11-20 17:28:36

1k

Views

Rank of $xy^{\mathrm T}+yx^{\mathrm T}$

Published on 20 Nov 2019 - 17:28

score 67 · Answer 2 · 2026-03-28 02:48:52

67

Views

A problem regarding the rank of a symmetric matrix

Published on 28 Mar 2026 - 2:48

score 393 · Answer 3 · 2026-03-25 14:46:57

393

Views

Adding a scalar multiple of one column to another leaves the column and row ranks unaltered and deduce from this that row rank = column rank

Published on 25 Mar 2026 - 14:46

score 169 · Answer 4 · 2019-11-24 06:58:02

169

Views

row rank of a submatrix of $A$ cannot exceed the row rank of $A$ without using row rank = column rank

Published on 24 Nov 2019 - 6:58

score 67 · Answer 5 · 2019-11-28 05:14:33

67

Views

Find the rank of matrix, where $a \in \mathbb R$

Published on 28 Nov 2019 - 5:14

score 992 · Answer 6 · 2026-03-28 08:50:15

992

Views

Rank of the sum of rank-1 matrices

Published on 28 Mar 2026 - 8:50

score 76 · Answer 7 · 2019-11-30 18:02:07

76

Views

Proof that for an $n {\times} n$ matrix $A$ , it has $\text{rank}(A) = n$ if the proposition: $AB = 0 \rightarrow B = 0$ is true

Published on 30 Nov 2019 - 18:02

score 102 · Answer 8 · 2026-03-26 06:25:53

102

Views

What is the estimate coefficient when design matrix is singular, when using the Moore-Penrose generalized inverse matrix?

Published on 26 Mar 2026 - 6:25

score 174 · Answer 9 · 2019-12-02 05:34:15

174

Views

dimension of range of matrix product

Published on 02 Dec 2019 - 5:34

score 9.7k · Answer 10 · 2019-12-03 13:39:31

9.7k

Views

What is the rank and nullity of the zero matrix?

Published on 03 Dec 2019 - 13:39

score 195 · Answer 11 · 2019-12-03 20:51:04

195

Views

True/false: $\det(A^2+I)\ge 0$ for every $3 \times 3$ matrix with real entries and rank $>0$

Published on 03 Dec 2019 - 20:51

score 205 · Answer 12 · 2026-03-27 13:18:56

205

Views

$\text{det}(\text{abs}({\bf d - d}^T))$ being zero implies two or more elements equal in $\bf d$?

Published on 27 Mar 2026 - 13:18

score 56 · Answer 13 · 2019-12-06 18:01:25

56

Views

Given rank and nullity, prove that $rank(B^2)=rank(B)$

Published on 06 Dec 2019 - 18:01

score 863 · Answer 14 · 2026-03-26 08:02:41

863

Views

Claim about positive definiteness of $X'X$ and the rank of $X$

Published on 26 Mar 2026 - 8:02

score 939 · Answer 15 · 2019-12-09 17:03:04

939

Views

If $A$ is a $4 \times 6$ matrix with rank $3$, then the reduced row echelon form of $A$ has:

Published on 09 Dec 2019 - 17:03

List Question

Rank of $xy^{\mathrm T}+yx^{\mathrm T}$

A problem regarding the rank of a symmetric matrix

Adding a scalar multiple of one column to another leaves the column and row ranks unaltered and deduce from this that row rank = column rank

row rank of a submatrix of $A$ cannot exceed the row rank of $A$ without using row rank = column rank

Find the rank of matrix, where $a \in \mathbb R$

Rank of the sum of rank-1 matrices

Proof that for an $n {\times} n$ matrix $A$ , it has $\text{rank}(A) = n$ if the proposition: $AB = 0 \rightarrow B = 0$ is true

What is the estimate coefficient when design matrix is singular, when using the Moore-Penrose generalized inverse matrix?

dimension of range of matrix product

What is the rank and nullity of the zero matrix?

True/false: $\det(A^2+I)\ge 0$ for every $3 \times 3$ matrix with real entries and rank $>0$

$\text{det}(\text{abs}({\bf d - d}^T))$ being zero implies two or more elements equal in $\bf d$?

Given rank and nullity, prove that $rank(B^2)=rank(B)$

Claim about positive definiteness of $X'X$ and the rank of $X$

If $A$ is a $4 \times 6$ matrix with rank $3$, then the reduced row echelon form of $A$ has:

Trending Questions

Popular # Hahtags

Popular Questions