Question

An identity related to dilation matrix: $\sum_{j=1}^{|det(M)|}e^{-2\pi i\gamma_j\cdot \omega}=|det(M)|\delta_{0}(\omega)$

score 39 · Answer 1 · 2026-04-14 20:54:50

39

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An identity related to dilation matrix: $\sum_{j=1}^{|det(M)|}e^{-2\pi i\gamma_j\cdot \omega}=|det(M)|\delta_{0}(\omega)$

Published on 14 Apr 2026 - 20:54

score 102 · Answer 2 · 2026-04-11 20:15:43

102

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score 340 · Answer 3 · 2026-04-17 08:35:24

340

Views

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score 103 · Answer 4 · 2026-04-12 10:32:37

103

Views

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score 87 · Answer 5 · 2026-04-11 12:40:35

87

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score 46 · Answer 6 · 2026-04-15 11:47:04

46

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score 106 · Answer 7 · 2026-04-13 17:33:34

106

Views

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score 346 · Answer 8 · 2026-04-16 09:58:40

346

Views

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score 133 · Answer 9 · 2026-04-09 04:19:53

133

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204

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score 311 · Answer 11 · 2026-03-24 22:07:39

311

Views

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Published on 24 Mar 2026 - 22:07

score 665 · Answer 12 · 2026-04-12 18:11:21

665

Views

Prove the induced matrix norm $\|A\|_\infty = \max_i \| a^*_i \|_1$

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score 70 · Answer 13 · 2026-04-09 07:44:34

70

Views

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score 258 · Answer 14 · 2026-04-12 21:22:17

258

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score 582 · Answer 15 · 2026-04-13 17:55:34

582

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List Question

An identity related to dilation matrix: $\sum_{j=1}^{|det(M)|}e^{-2\pi i\gamma_j\cdot \omega}=|det(M)|\delta_{0}(\omega)$

How to solve this system of nonlinear differential equation?

Why is there an additional translation matrix?

Properties of set $\{X∈ M_n(\mathbb{C}) | \operatorname{adj}(X)=I_n\}$

$A^2$ is diagonalizable and so is $A$

Determinant properties doubt

Question about eigenvalues of a matrix and powers and trace of a matrix

$AX = XA$, then show that $A^X=XA^$

Basis of polynomial and matrix spaces

Functions Applied to Square Matrices

Derivative of $\mbox{tr}\left\{ X^T A X^{-1} B\right\}$ w.r.t. matrix $X$ for a given $A$ and $B$ matrices?

Prove the induced matrix norm $\|A\|_\infty = \max_i \| a^*_i \|_1$

Matrix represenation of linear operator

Inverse of Hermitian matrix with all negative eigenvalues?

Diagonalizable block-diagonal matrix

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