Question

How to prove the following equality with matrix norm?

score 90 · Answer 1 · 2026-03-29 16:08:45

90

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How to prove the following equality with matrix norm?

Published on 29 Mar 2026 - 16:08

score 119 · Answer 2 · 2026-03-30 01:42:33

119

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I don't understand this $\left(\left[T\right]^B_C\right)^{-1}=\left[T^{-1}\right]^C_B$

Published on 30 Mar 2026 - 1:42

score 528 · Answer 3 · 2026-03-29 11:58:02

528

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Powers of a simple matrix and Catalan numbers

Published on 29 Mar 2026 - 11:58

score 417 · Answer 4 · 2026-03-30 13:25:39

417

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Gradient of Cost Function To Find Matrix Factorization

Published on 30 Mar 2026 - 13:25

score 90 · Answer 5 · 2026-03-29 07:47:10

90

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Particular commutator matrix is strictly lower triangular, or at least annihilates last base vector

Published on 29 Mar 2026 - 7:47

score 142 · Answer 6 · 2026-03-29 20:26:00

142

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Inverse of a triangular-by-block $3 \times 3$ matrix

Published on 29 Mar 2026 - 20:26

score 49 · Answer 7 · 2026-03-29 09:43:00

49

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Form square matrix out of a non square matrix to calculate determinant

Published on 29 Mar 2026 - 9:43

score 58 · Answer 8 · 2026-03-29 19:30:47

58

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Extending a linear action to monomials of higher degree

Published on 29 Mar 2026 - 19:30

score 133 · Answer 9 · 2026-03-30 13:07:28

133

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Eiegenspectrum on subtracting a diagonal matrix

Published on 30 Mar 2026 - 13:07

score 67 · Answer 10 · 2026-03-29 09:25:23

67

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For a $G$ a finite subgroup of $\mathbb{GL}_2(\mathbb{R})$ of rank $3$, show that $f^2 = \textrm{Id}$ for all $f \in G$

Published on 29 Mar 2026 - 9:25

score 202 · Answer 11 · 2026-03-20 03:24:22

202

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Distribution of min/max row sum of matrix with i.i.d. uniform random variables

Published on 20 Mar 2026 - 3:24

score 96 · Answer 12 · 2026-03-29 11:25:59

96

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Is $A$ satisfying ${A^2} = - I$ similar to $\left[ {\begin{smallmatrix} 0&I \\ { - I}&0 \end{smallmatrix}} \right]$?

Published on 29 Mar 2026 - 11:25

score 162 · Answer 13 · 2026-03-30 04:04:50

162

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Determining a $4\times4$ matrix knowing $3$ of its $4$ eigenvectors and eigenvalues

Published on 30 Mar 2026 - 4:04

score 891 · Answer 14 · 2026-03-27 06:14:00

891

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what is transposition Hadamard product?

Published on 27 Mar 2026 - 6:14

score 65 · Answer 15 · 2026-03-20 11:06:43

65

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Assuming that A is the matrix of a linear operator F in S find the matrix B of F in R

Published on 20 Mar 2026 - 11:06

List Question

How to prove the following equality with matrix norm?

I don't understand this $\left(\left[T\right]^B_C\right)^{-1}=\left[T^{-1}\right]^C_B$

Powers of a simple matrix and Catalan numbers

Gradient of Cost Function To Find Matrix Factorization

Particular commutator matrix is strictly lower triangular, or at least annihilates last base vector

Inverse of a triangular-by-block $3 \times 3$ matrix

Form square matrix out of a non square matrix to calculate determinant

Extending a linear action to monomials of higher degree

Eiegenspectrum on subtracting a diagonal matrix

For a $G$ a finite subgroup of $\mathbb{GL}_2(\mathbb{R})$ of rank $3$, show that $f^2 = \textrm{Id}$ for all $f \in G$

Distribution of min/max row sum of matrix with i.i.d. uniform random variables

Is $A$ satisfying ${A^2} = - I$ similar to $\left[ {\begin{smallmatrix} 0&I \\ { - I}&0 \end{smallmatrix}} \right]$?

Determining a $4\times4$ matrix knowing $3$ of its $4$ eigenvectors and eigenvalues

what is transposition Hadamard product?

Assuming that A is the matrix of a linear operator F in S find the matrix B of F in R

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