Question

Why in these matrices are $AB=BA$ not equal? What is the logic behind them?

score 21.3k · Answer 1 · 2016-08-11 22:23:38

21.3k

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Why in these matrices are $AB=BA$ not equal? What is the logic behind them?

Published on 11 Aug 2016 - 22:23

score 1.2k · Answer 2 · 2016-08-14 02:52:04

1.2k

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Relationship between columns, rows, rank given a system of linear equations

Published on 14 Aug 2016 - 2:52

score 1000 · Answer 3 · 2026-03-26 20:37:56

1000

Views

Rank of random binary matrix

Published on 26 Mar 2026 - 20:37

score 66 · Answer 4 · 2016-08-16 03:12:38

66

Views

Relation between Rank of a Matrix and its characterstic equation.

Published on 16 Aug 2016 - 3:12

score 49 · Answer 5 · 2016-08-16 13:28:17

49

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Ranks and solution sets of homogeneous systems.

Published on 16 Aug 2016 - 13:28

score 310 · Answer 6 · 2016-08-19 17:00:48

310

Views

The rank of a matrix, dependent on the value of $t$

Published on 19 Aug 2016 - 17:00

score 310 · Answer 7 · 2016-08-21 10:54:54

310

Views

Let $A$ be an $n \times n$ matrix and suppose $\det (A) = 0$. What is the maximum value that $\mbox{rank} (A)$ can be?

Published on 21 Aug 2016 - 10:54

score 287 · Answer 8 · 2016-08-23 17:09:18

287

Views

Prove a set open from a topological space whose elements are nxn matrices

Published on 23 Aug 2016 - 17:09

score 109 · Answer 9 · 2016-08-25 13:39:34

109

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How frequently do $5 \times 5$ dimensional skew-symmetric real-valued matrices of rank $2$ occur?

Published on 25 Aug 2016 - 13:39

score 642 · Answer 10 · 2016-08-26 11:02:54

642

Views

The rank of a principal submatrix of a positive semi definite matrix

Published on 26 Aug 2016 - 11:02

score 5.5k · Answer 11 · 2016-08-27 05:29:19

5.5k

Views

Is rank of submatrix less than or equal to rank of matrix?

Published on 27 Aug 2016 - 5:29

score 1.1k · Answer 12 · 2016-08-28 15:23:06

1.1k

Views

If $\operatorname{rank} (AB) = \operatorname{rank} (BA)$ for any $B$, then is $A$ invertible?

Published on 28 Aug 2016 - 15:23

score 299 · Answer 13 · 2016-08-29 06:36:56

299

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If $A=\left( \begin{array}{ccc} 0 & 1 & 0 \\ 0 & 0 & 1 \\ 1 & 0 & 0 \end{array} \right)$, find the rank of $A+A^2+A^3$

Published on 29 Aug 2016 - 6:36

score 110 · Answer 14 · 2016-08-29 10:40:27

110

Views

If $A=\left( \begin{array}{ccc} 0 & 1 & 0 \\ 0 & 0 & 1 \\ 1 & 0 & 0 \end{array} \right)$, find the rank of $A+A^2$

Published on 29 Aug 2016 - 10:40

score 521 · Answer 15 · 2016-09-01 22:41:12

521

Views

Rank of an n x n matrix A and how it relates to rank $A^2$

Published on 01 Sep 2016 - 22:41

List Question

Why in these matrices are $AB=BA$ not equal? What is the logic behind them?

Relationship between columns, rows, rank given a system of linear equations

Rank of random binary matrix

Relation between Rank of a Matrix and its characterstic equation.

Ranks and solution sets of homogeneous systems.

The rank of a matrix, dependent on the value of $t$

Let $A$ be an $n \times n$ matrix and suppose $\det (A) = 0$. What is the maximum value that $\mbox{rank} (A)$ can be?

Prove a set open from a topological space whose elements are nxn matrices

How frequently do $5 \times 5$ dimensional skew-symmetric real-valued matrices of rank $2$ occur?

The rank of a principal submatrix of a positive semi definite matrix

Is rank of submatrix less than or equal to rank of matrix?

If $\operatorname{rank} (AB) = \operatorname{rank} (BA)$ for any $B$, then is $A$ invertible?

If $A=\left( \begin{array}{ccc} 0 & 1 & 0 \\ 0 & 0 & 1 \\ 1 & 0 & 0 \end{array} \right)$, find the rank of $A+A^2+A^3$

If $A=\left( \begin{array}{ccc} 0 & 1 & 0 \\ 0 & 0 & 1 \\ 1 & 0 & 0 \end{array} \right)$, find the rank of $A+A^2$

Rank of an n x n matrix A and how it relates to rank $A^2$

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