List questions from fourier-analysis

Published on 16 Apr 2026 - 4:00

921

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Fourier Transform method to solve a parabolic PDE in $\mathbb{R^n}$

Published on 14 Apr 2026 - 0:40

630

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Why are these functions called "kernels"?

Published on 15 Apr 2026 - 8:09

21

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How to choose $f\in C_{c}^{\infty}(\mathbb R)$ so that $ \hat{g}\in \ell^{1}(\mathbb Z)$, where $g(x)=f(x+2\pi)$?

Published on 13 Apr 2026 - 16:30

378

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Please explain the $$-operator in $x^[n]$

Published on 17 Apr 2026 - 15:54

1.2k

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How i can find the fourier transform of $\frac{\sinh(ax)}{\sinh(\pi x)}$ where,$ |a| < \pi$

Published on 11 Apr 2026 - 15:12

165

Views

Fourier transformations and the inversion formula

Published on 09 Apr 2026 - 12:29

135

Views

Calculate $\int_{-T}^T {\operatorname{sinc}}\big({\tau}-\lambda\big) {\operatorname{sinc}}\big({\tau}-\nu\big)d\tau$.

Published on 15 Apr 2026 - 13:30

68

Views

Fourier transform and $L^1,$ $L^2$ convergence

Published on 19 Apr 2026 - 21:31

898

Views

Fourier series sketching

Published on 12 Apr 2026 - 22:47

426

Views

Multiple convolutions

Published on 12 Apr 2026 - 10:09

588

Views

Fourier transform in three dimensions getting out of hand

Published on 12 Apr 2026 - 2:06

69

Views

Judging whether a function is not in the range of Fourier transformation

Published on 13 Apr 2026 - 12:02

5.4k

Views

Fourier transform of a product of two rect functions

Published on 09 Apr 2026 - 21:27

236

Views

Can a DTFT have a period different of $2\pi$?

Published on 10 Apr 2026 - 15:22

List Question

Relationship between Inverse Fourier and Inverse Laplace Transform?

Fourier Transform method to solve a parabolic PDE in $\mathbb{R^n}$

Why are these functions called "kernels"?

How to choose $f\in C_{c}^{\infty}(\mathbb R)$ so that $ \hat{g}\in \ell^{1}(\mathbb Z)$, where $g(x)=f(x+2\pi)$?

Please explain the $$-operator in $x^[n]$

How i can find the fourier transform of $\frac{\sinh(ax)}{\sinh(\pi x)}$ where,$ |a| < \pi$

Fourier transformations and the inversion formula

Calculate $\int_{-T}^T {\operatorname{sinc}}\big({\tau}-\lambda\big) {\operatorname{sinc}}\big({\tau}-\nu\big)d\tau$.

Fourier transform and $L^1,$ $L^2$ convergence

Fourier series sketching

Multiple convolutions

Fourier transform in three dimensions getting out of hand

Judging whether a function is not in the range of Fourier transformation

Fourier transform of a product of two rect functions

Can a DTFT have a period different of $2\pi$?

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