List questions from fourier-transform

Published on 11 Apr 2026 - 22:37

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Evaluating inverse Discrete Time Fourier Transform

Published on 13 Apr 2026 - 12:56

88

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Prove $H^k(\mathbb{R}^n) = W^{k,2}(\mathbb{R}^n)$

Published on 14 Apr 2026 - 4:37

202

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How can I solve this PDE using Fourier Transformation?

Published on 09 Apr 2026 - 11:36

22

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How to calc $\tilde{A}_n$ in $w\left(x,t\right)=\sum_{n=1}^{\infty }\tilde{A}_n\cos\left(nx\right)\cdot e^{\left(4-n^2\right)t}=\frac{1}{4}e^{4t}$?

Published on 17 Apr 2026 - 13:13

131

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How do you find $f(x)$ if its sine transform is $2πs^{½}$?

Published on 13 Apr 2026 - 19:40

51

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Does this Weighted Lp bound my Sobolev-esque Fourier Space?

Published on 12 Apr 2026 - 9:53

344

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Why can't we just immediately Fourier Transform the dirac comb? Why do we need to define it's Fourier Series first?

Published on 11 Apr 2026 - 8:23

40

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Fourier transform of a vortex $e^{in\theta}$

Published on 12 Apr 2026 - 17:00

108

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How to compute the integral $\int_0^\infty dx\ \frac{e^{- i y x}}{x-i\alpha}$?

Published on 13 Apr 2026 - 22:03

255

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Homogeneous Besov space $\dot B^{-\sigma}(\mathbb R^d)$ is a Banach space

Published on 14 Apr 2026 - 23:43

238

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Proving Euler-Maclaurin approximation for even functions using Poisson summation

Published on 09 Apr 2026 - 15:20

46

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How can I compute the Fourier transform of the signal?

Published on 16 Apr 2026 - 22:11

267

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Fourier transform of a function involving its derivative

Published on 10 Apr 2026 - 13:17

48

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Does this describe fourier transform correctly?

Published on 10 Apr 2026 - 21:31

List Question

Representation of Fourier transform

Evaluating inverse Discrete Time Fourier Transform

Prove $H^k(\mathbb{R}^n) = W^{k,2}(\mathbb{R}^n)$

How can I solve this PDE using Fourier Transformation?

How to calc $\tilde{A}_n$ in $w\left(x,t\right)=\sum_{n=1}^{\infty }\tilde{A}_n\cos\left(nx\right)\cdot e^{\left(4-n^2\right)t}=\frac{1}{4}e^{4t}$?

How do you find $f(x)$ if its sine transform is $2πs^{½}$?

Does this Weighted Lp bound my Sobolev-esque Fourier Space?

Why can't we just immediately Fourier Transform the dirac comb? Why do we need to define it's Fourier Series first?

Fourier transform of a vortex $e^{in\theta}$

How to compute the integral $\int_0^\infty dx\ \frac{e^{- i y x}}{x-i\alpha}$?

Homogeneous Besov space $\dot B^{-\sigma}(\mathbb R^d)$ is a Banach space

Proving Euler-Maclaurin approximation for even functions using Poisson summation

How can I compute the Fourier transform of the signal?

Fourier transform of a function involving its derivative

Does this describe fourier transform correctly?

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