Question

On the equivalence of representations of Fourier series

score 408 · Answer 1 · 2017-03-12 04:14:41

408

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On the equivalence of representations of Fourier series

Published on 12 Mar 2017 - 4:14

score 317 · Answer 2 · 2026-03-29 19:17:27

317

Views

To prove that a theta series of a quadratic form is a modular form

Published on 29 Mar 2026 - 19:17

score 34 · Answer 3 · 2017-03-13 20:39:21

34

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Simplifying definitions

Published on 13 Mar 2017 - 20:39

score 1.1k · Answer 4 · 2017-03-14 10:41:02

1.1k

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Summing up Fourier coefficients $\hat{f}({\bf m})$ of $f\in L^1({\bf T}^n)$ for ${\bf m}=(m,\ldots,m), m \in {\bf Z}$

Published on 14 Mar 2017 - 10:41

score 290 · Answer 5 · 2017-03-14 12:07:36

290

Views

Fourier series representation and the first coefficient

Published on 14 Mar 2017 - 12:07

score 684 · Answer 6 · 2026-02-24 11:54:55

684

Views

Proof for Sturm Liouville eigenfunction expantion pointwise convergence theorem

Published on 24 Feb 2026 - 11:54

score 218 · Answer 7 · 2017-03-14 17:41:52

218

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How can I find the Fourier series expansion of this (discontinuous) function?

Published on 14 Mar 2017 - 17:41

score 290 · Answer 8 · 2017-03-16 00:14:42

290

Views

Example showing the subspace of Riemann integrable functions in $L^2([-\pi,\pi])$ is not closed

Published on 16 Mar 2017 - 0:14

score 76 · Answer 9 · 2017-03-16 11:43:53

76

Views

Finding $\varphi(\theta)$ such that $\sum_{n\geq 0} e^{in\theta}/(n+1) = \sum_{n \geq 0} \hat{\varphi} e^{in\theta}$

Published on 16 Mar 2017 - 11:43

score 184 · Answer 10 · 2026-04-03 04:41:25

184

Views

Corollary 2.4 in Stein and Shakarachi Fourier Analysis

Published on 03 Apr 2026 - 4:41

score 354 · Answer 11 · 2026-04-06 17:47:52

354

Views

What do the frequency components of a fourier transform do to the function itself?

Published on 06 Apr 2026 - 17:47

score 108 · Answer 12 · 2026-04-03 23:19:05

108

Views

Ploting a Fourier rectangular signal in Matlab

Published on 03 Apr 2026 - 23:19

score 77 · Answer 13 · 2026-03-29 03:53:25

77

Views

If a DT is imaginary and odd, prove that it's coefficients are real and odd.

Published on 29 Mar 2026 - 3:53

score 126 · Answer 14 · 2026-04-01 06:09:27

126

Views

Proof of Corollary 2.4 in Stein and Shakarachi Fourier Analysis

Published on 01 Apr 2026 - 6:09

score 86 · Answer 15 · 2026-03-27 02:35:56

86

Views

Spectral Density of a $\cos + \sin + \operatorname{MA}(1)$ process

Published on 27 Mar 2026 - 2:35

List Question

On the equivalence of representations of Fourier series

To prove that a theta series of a quadratic form is a modular form

Simplifying definitions

Summing up Fourier coefficients $\hat{f}({\bf m})$ of $f\in L^1({\bf T}^n)$ for ${\bf m}=(m,\ldots,m), m \in {\bf Z}$

Fourier series representation and the first coefficient

Proof for Sturm Liouville eigenfunction expantion pointwise convergence theorem

How can I find the Fourier series expansion of this (discontinuous) function?

Example showing the subspace of Riemann integrable functions in $L^2([-\pi,\pi])$ is not closed

Finding $\varphi(\theta)$ such that $\sum_{n\geq 0} e^{in\theta}/(n+1) = \sum_{n \geq 0} \hat{\varphi} e^{in\theta}$

Corollary 2.4 in Stein and Shakarachi Fourier Analysis

What do the frequency components of a fourier transform do to the function itself?

Ploting a Fourier rectangular signal in Matlab

If a DT is imaginary and odd, prove that it's coefficients are real and odd.

Proof of Corollary 2.4 in Stein and Shakarachi Fourier Analysis

Spectral Density of a $\cos + \sin + \operatorname{MA}(1)$ process

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