Question

why $ Rank(xy^T+yx^T)=2$ for nonzero and non-collinear $x,y \in R^n$

score 179 · Answer 1 · 2017-10-21 03:55:52

179

Views

why $ Rank(xy^T+yx^T)=2$ for nonzero and non-collinear $x,y \in R^n$

Published on 21 Oct 2017 - 3:55

score 944 · Answer 2 · 2017-10-23 02:45:57

944

Views

Rank of a matrix less than its dimension

Published on 23 Oct 2017 - 2:45

score 190 · Answer 3 · 2017-10-23 12:02:03

190

Views

Rank of sum of matrix and arbitrarily small matrix

Published on 23 Oct 2017 - 12:02

score 217 · Answer 4 · 2017-10-24 07:16:49

217

Views

Partitioning rectangular matrix to get invertible square matrix?

Published on 24 Oct 2017 - 7:16

score 204 · Answer 5 · 2017-10-25 14:24:18

204

Views

How do I prove $\operatorname{rank}(ABC)\geq \operatorname{rank}(AB)+\operatorname{rank}(BC)-\operatorname{rank}(B)$

Published on 25 Oct 2017 - 14:24

score 101 · Answer 6 · 2026-03-28 21:34:21

101

Views

Finding the closed form of the product $\prod_{i = 1}^{\infty} (1 - 1/q^{i}) $.

Published on 28 Mar 2026 - 21:34

score 4.3k · Answer 7 · 2017-10-30 07:00:07

4.3k

Views

Prove that the rank of a matrix is the number of non-zero rows of its row-reduced form

Published on 30 Oct 2017 - 7:00

score 4.5k · Answer 8 · 2026-03-27 16:25:16

4.5k

Views

Why is dimension of solution space of homogeneous equations n-r?

Published on 27 Mar 2026 - 16:25

score 178 · Answer 9 · 2026-03-25 16:40:14

178

Views

Positive-definiteness of the summation of a diagonal matrix plus a rank $1$ matrix

Published on 25 Mar 2026 - 16:40

score 314 · Answer 10 · 2017-11-02 16:04:46

314

Views

Reducing to reduced echelon form in linear algebra seems to do so many useful things - what gives? Why?

Published on 02 Nov 2017 - 16:04

score 18 · Answer 11 · 2017-11-03 02:19:51

18

Views

Analysing Ranking Data

Published on 03 Nov 2017 - 2:19

score 851 · Answer 12 · 2017-11-04 09:34:11

851

Views

are row rank and column rank alway equal and no exceptions?

Published on 04 Nov 2017 - 9:34

score 88 · Answer 13 · 2017-11-04 12:28:21

88

Views

For what values of "a" would the system have an infinite solutions?

Published on 04 Nov 2017 - 12:28

score 195 · Answer 14 · 2026-03-31 08:12:38

195

Views

How to prove $\operatorname{rank}(XGY^T) = \operatorname{rank}(G)$?

Published on 31 Mar 2026 - 8:12

score 187 · Answer 15 · 2017-11-07 03:17:58

187

Views

How do I find k so that this rank is true?

Published on 07 Nov 2017 - 3:17

List Question

why $ Rank(xy^T+yx^T)=2$ for nonzero and non-collinear $x,y \in R^n$

Rank of a matrix less than its dimension

Rank of sum of matrix and arbitrarily small matrix

Partitioning rectangular matrix to get invertible square matrix?

How do I prove $\operatorname{rank}(ABC)\geq \operatorname{rank}(AB)+\operatorname{rank}(BC)-\operatorname{rank}(B)$

Finding the closed form of the product $\prod_{i = 1}^{\infty} (1 - 1/q^{i}) $.

Prove that the rank of a matrix is the number of non-zero rows of its row-reduced form

Why is dimension of solution space of homogeneous equations n-r?

Positive-definiteness of the summation of a diagonal matrix plus a rank $1$ matrix

Reducing to reduced echelon form in linear algebra seems to do so many useful things - what gives? Why?

Analysing Ranking Data

are row rank and column rank alway equal and no exceptions?

For what values of "a" would the system have an infinite solutions?

How to prove $\operatorname{rank}(XGY^T) = \operatorname{rank}(G)$?

How do I find k so that this rank is true?

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