Question

Prove that A is similar to B and what is the multiplicity of $0$ as characteristics root of $A$?

score 38 · Answer 1 · 2026-04-11 18:53:33

38

Views

Prove that A is similar to B and what is the multiplicity of $0$ as characteristics root of $A$?

Published on 11 Apr 2026 - 18:53

score 107 · Answer 2 · 2026-04-11 21:24:51

107

Views

If $A$ if of full column rank, what about $[A;B]$

Published on 11 Apr 2026 - 21:24

score 127 · Answer 3 · 2026-04-15 16:33:31

127

Views

Inverse of a certain unit upper triangular matrix

Published on 15 Apr 2026 - 16:33

score 188 · Answer 4 · 2026-04-14 10:23:30

188

Views

Determinant of 5x5 Matrix with 6 Adjacent Zeros

Published on 14 Apr 2026 - 10:23

score 28 · Answer 5 · 2026-05-05 18:48:31

Is $\frac{\partial X}{\partial I_{rs}}=x_{rs}$ right?Proof of $\frac{\partial y_{mn}}{\partial X}=\mathbf A^T \mathbf I_{mn} \mathbf B^T$

score 1.2k · Answer 6 · 2026-04-11 01:58:09

1.2k

Views

What is a two parameter family of matrices?

Published on 11 Apr 2026 - 1:58

score 54 · Answer 7 · 2026-04-10 10:36:41

54

Views

Efficient Method to Compute Geometric Series of a Matrix

Published on 10 Apr 2026 - 10:36

score 49 · Answer 8 · 2026-04-30 00:13:05

49

Views

About Dataframes

Published on 30 Apr 2026 - 0:13

score 179 · Answer 9 · 2026-04-15 04:03:58

If the condition number of a matrix $A$ under the $l_2$-norm equals $1$, prove that $A^T A$ = $aI$ where $a$ is a nonzero scalar

score 49 · Answer 10 · 2026-04-13 08:00:37

49

Views

Probability that the sum of $k$ matrices is invertible

Published on 13 Apr 2026 - 8:00

score 86 · Answer 11 · 2026-04-12 18:06:08

86

Views

Common eigenvector problem regarding the following matrices $ A $ and $ B $

Published on 12 Apr 2026 - 18:06

score 61 · Answer 12 · 2026-04-10 19:10:14

61

Views

Find a null space of matrix A

Published on 10 Apr 2026 - 19:10

score 360 · Answer 13 · 2026-04-11 09:38:05

360

Views

Solve $Ax=b$ when the matrix $AA^T$ is regular

Published on 11 Apr 2026 - 9:38

score 47 · Answer 14 · 2026-04-13 11:27:31

47

Views

On a special decomposition of a $3\times 3$ matrix

Published on 13 Apr 2026 - 11:27

score 433 · Answer 15 · 2026-04-10 15:09:22

433

Views

Having trouble finding this 2x3 matrix?

Published on 10 Apr 2026 - 15:09

List Question

Prove that A is similar to B and what is the multiplicity of $0$ as characteristics root of $A$?

If $A$ if of full column rank, what about $[A;B]$

Inverse of a certain unit upper triangular matrix

Determinant of 5x5 Matrix with 6 Adjacent Zeros

Is $\frac{\partial X}{\partial I_{rs}}=x_{rs}$ right?Proof of $\frac{\partial y_{mn}}{\partial X}=\mathbf A^T \mathbf I_{mn} \mathbf B^T$

What is a two parameter family of matrices?

Efficient Method to Compute Geometric Series of a Matrix

About Dataframes

If the condition number of a matrix $A$ under the $l_2$-norm equals $1$, prove that $A^T A$ = $aI$ where $a$ is a nonzero scalar

Probability that the sum of $k$ matrices is invertible

Common eigenvector problem regarding the following matrices $ A $ and $ B $

Find a null space of matrix A

Solve $Ax=b$ when the matrix $AA^T$ is regular

On a special decomposition of a $3\times 3$ matrix

Having trouble finding this 2x3 matrix?

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