List questions from fourier-analysis

Published on 22 Oct 2014 - 14:00

386

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Fourier series representation of $\sin^4 x$

Published on 28 Mar 2026 - 22:08

130

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Fourier transform with the function in denominator

Published on 22 Oct 2014 - 17:20

314

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How did Fourier series lead to the development of rigorous analysis?

Published on 08 Apr 2026 - 10:10

390

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Proving that any continuous homomorphism of $\mathbb{R}/(2\pi\mathbb{Z})$ int0 $T$* is neccesarily an exponential function

Published on 27 Mar 2026 - 0:04

125

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Fourier series, instantly determining $b_n$ once $a_n$ is found.

Published on 02 Apr 2026 - 20:20

1.2k

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How to show a Fejér kernel is a good kernal??

Published on 25 Oct 2014 - 8:37

189

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Fourier transform (properties)

Published on 08 Apr 2026 - 17:40

115

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Is there a cyclic vector for $-\frac{d^{2}}{dx^{2}}$ on $L^{2}[0,2\pi]$ with periodic conditions?

Published on 28 Mar 2026 - 8:36

2k

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Reference request for Fourier analysis on local fields

Published on 26 Mar 2026 - 10:57

67

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Mistake in evaluation of $\int_\mathbb{R} \frac{1}{1+t^4}e^{-itx}dt$

Published on 26 Oct 2014 - 22:46

474

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Exercise about Fourier transform from Rudin's book

Published on 27 Oct 2014 - 9:01

50

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Solving a simple integral by derivating w.r.t. to constants

Published on 27 Oct 2014 - 13:36

1.3k

Views

About the Fourier transform of the surface measure of the unit sphere

Published on 01 Apr 2026 - 6:30

397

Views

Different Versions of Fourier Series? What about Uniqueness?

Published on 02 Apr 2026 - 20:21

List Question

$\int\limits_{\mathbb{R}} e^{-|x|}e^{-ix\xi}dx$

Fourier series representation of $\sin^4 x$

Fourier transform with the function in denominator

How did Fourier series lead to the development of rigorous analysis?

Proving that any continuous homomorphism of $\mathbb{R}/(2\pi\mathbb{Z})$ int0 $T$* is neccesarily an exponential function

Fourier series, instantly determining $b_n$ once $a_n$ is found.

How to show a Fejér kernel is a good kernal??

Fourier transform (properties)

Is there a cyclic vector for $-\frac{d^{2}}{dx^{2}}$ on $L^{2}[0,2\pi]$ with periodic conditions?

Reference request for Fourier analysis on local fields

Mistake in evaluation of $\int_\mathbb{R} \frac{1}{1+t^4}e^{-itx}dt$

Exercise about Fourier transform from Rudin's book

Solving a simple integral by derivating w.r.t. to constants

About the Fourier transform of the surface measure of the unit sphere

Different Versions of Fourier Series? What about Uniqueness?

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