List questions from fourier-analysis

Published on 09 Apr 2026 - 13:41

1.2k

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Ambiguity in the Fourier transform of $f(x)=\cos(ax)$

Published on 16 Apr 2026 - 18:36

156

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Where does the $2 \pi$ come from in the Fourier Transform Equation?

Published on 15 Apr 2026 - 13:54

263

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FFT multiplication

Published on 30 Apr 2026 - 10:21

511

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Why the difference between definitions of the discrete/continuous Fourier transforms?

Published on 10 Apr 2026 - 4:40

907

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'Converse' of Riemann-Lebesgue Lemma

Published on 17 Apr 2026 - 11:03

283

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Growth of Fourier coefficients of piecewise linear function

Published on 15 Apr 2026 - 13:34

155

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Identical Summation and Integration of specific functions

Published on 05 May 2026 - 3:50

1.3k

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Fourier series of half of $\sin(\pi x)$

Published on 11 Apr 2026 - 18:15

414

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Fourier expansion and transform - what about the phase of the waves that i am adding?

Published on 12 Apr 2026 - 2:06

52

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Given a spectrum, what can we know about its function?

Published on 11 Apr 2026 - 3:19

607

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Double integral definition of periodic Sobolev spaces

Published on 11 Apr 2026 - 6:17

2.6k

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Fourier transform is an isomorphism over the Schwartz space

Published on 12 Apr 2026 - 17:58

80

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Are the Spherical harmonics the S^2 equivalent of the exp(i \pi n) function series?

Published on 26 Mar 2026 - 6:21

59

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A Fourier cosine series of type $f(x)=\frac{a_0}{2}+\sum_{k=1}^\infty a_k \cos(2^k x)$.

Published on 15 Apr 2026 - 20:08

List Question

Fourier transform of finite aperiodic signals

Ambiguity in the Fourier transform of $f(x)=\cos(ax)$

Where does the $2 \pi$ come from in the Fourier Transform Equation?

FFT multiplication

Why the difference between definitions of the discrete/continuous Fourier transforms?

'Converse' of Riemann-Lebesgue Lemma

Growth of Fourier coefficients of piecewise linear function

Identical Summation and Integration of specific functions

Fourier series of half of $\sin(\pi x)$

Fourier expansion and transform - what about the phase of the waves that i am adding?

Given a spectrum, what can we know about its function?

Double integral definition of periodic Sobolev spaces

Fourier transform is an isomorphism over the Schwartz space

Are the Spherical harmonics the S^2 equivalent of the exp(i \pi n) function series?

A Fourier cosine series of type $f(x)=\frac{a_0}{2}+\sum_{k=1}^\infty a_k \cos(2^k x)$.

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