Question

Clash with the matrix theory of solving equation with Cramer's rule

score 99 · Answer 1 · 2018-10-22 06:51:43

99

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Clash with the matrix theory of solving equation with Cramer's rule

Published on 22 Oct 2018 - 6:51

score 127 · Answer 2 · 2018-10-24 08:18:40

127

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Dimension of $W_{2}$?

Published on 24 Oct 2018 - 8:18

score 150 · Answer 3 · 2018-10-24 09:11:48

150

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Injectivity of $g_{1}:M_{2 \times 5}(\Bbb{R}) \rightarrow M_{5 \times 5}(\Bbb{R})$?

Published on 24 Oct 2018 - 9:11

score 1.7k · Answer 4 · 2018-10-25 09:23:03

1.7k

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Matrix rank condition for consistency of a system of linear equations.

Published on 25 Oct 2018 - 9:23

score 1.8k · Answer 5 · 2018-10-26 22:24:12

1.8k

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Finding the matrix A in Ax=b

Published on 26 Oct 2018 - 22:24

score 86 · Answer 6 · 2018-11-01 02:47:59

86

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What conditions for the diagonal matrix $\mathbf{D}$ satisfying $\operatorname{rank}([DA,A]) = 2n$?

Published on 01 Nov 2018 - 2:47

score 2k · Answer 7 · 2018-11-04 04:05:14

2k

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Column Space, Row Space, Null Space, and Left Null Space

Published on 04 Nov 2018 - 4:05

score 281 · Answer 8 · 2018-11-04 18:29:28

281

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Bounding the difference of rank-1 matrices

Published on 04 Nov 2018 - 18:29

score 525 · Answer 9 · 2026-03-25 02:02:54

525

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Condition number on the DFT-like complex vandermonde matrix

Published on 25 Mar 2026 - 2:02

score 71 · Answer 10 · 2018-11-11 06:18:28

71

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For a real $n \times n$ matrix $A$ if $x^tA^tx \geq 0 \;\forall \;x,$ then $Au=0 $ iff $A^tu=0.$

Published on 11 Nov 2018 - 6:18

score 2k · Answer 11 · 2018-11-16 08:47:03

2k

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Orthogonal Projection onto Range of Matrix

Published on 16 Nov 2018 - 8:47

score 40 · Answer 12 · 2018-11-17 19:16:44

40

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When does exist matrices T and H such that HCE=TE? (all matrices are rectangular)

Published on 17 Nov 2018 - 19:16

score 1.7k · Answer 13 · 2018-11-19 12:04:31

1.7k

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basis of space of all $3\times3$ matrices and basis of space of all $3\times3$ matrices with rank $0, 1$ or $2$

Published on 19 Nov 2018 - 12:04

score 1k · Answer 14 · 2018-11-20 10:05:55

1k

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Proving rank of $(I_n-{1\over n}A_n)$ is $n-1$ where $A_n$ is $n\times n$ with all entries $1$

Published on 20 Nov 2018 - 10:05

score 64 · Answer 15 · 2018-11-20 16:02:36

64

Views

Rank of a simple matrix

Published on 20 Nov 2018 - 16:02

List Question

Clash with the matrix theory of solving equation with Cramer's rule

Dimension of $W_{2}$?

Injectivity of $g_{1}:M_{2 \times 5}(\Bbb{R}) \rightarrow M_{5 \times 5}(\Bbb{R})$?

Matrix rank condition for consistency of a system of linear equations.

Finding the matrix A in Ax=b

What conditions for the diagonal matrix $\mathbf{D}$ satisfying $\operatorname{rank}([DA,A]) = 2n$?

Column Space, Row Space, Null Space, and Left Null Space

Bounding the difference of rank-1 matrices

Condition number on the DFT-like complex vandermonde matrix

For a real $n \times n$ matrix $A$ if $x^tA^tx \geq 0 \;\forall \;x,$ then $Au=0 $ iff $A^tu=0.$

Orthogonal Projection onto Range of Matrix

When does exist matrices T and H such that HCE=TE? (all matrices are rectangular)

basis of space of all $3\times3$ matrices and basis of space of all $3\times3$ matrices with rank $0, 1$ or $2$

Proving rank of $(I_n-{1\over n}A_n)$ is $n-1$ where $A_n$ is $n\times n$ with all entries $1$

Rank of a simple matrix

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