List questions from fourier-analysis

Published on 17 Apr 2026 - 4:19

65

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Fourier transform for an auto correlation function

Published on 11 Apr 2026 - 5:33

1k

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$L_p$ norm of the Dirichlet Kernel

Published on 13 Apr 2026 - 10:48

2.9k

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Where is the wild use of the Dirac delta function in physics justfied?

Published on 13 Apr 2026 - 17:42

118

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properties of solution of heat-equation

Published on 09 Apr 2026 - 2:10

510

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Application of the Riesz Theorem to Fourier Series

Published on 10 Apr 2026 - 6:15

159

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proof of $\lim_\limits{m\to\infty}\frac1m\sum_\limits{n=1}^m f(an)=\int_\limits{0}^1fdx$

Published on 13 Apr 2026 - 17:15

145

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Why is $\sup\limits_{R>0}\int\lvert K(x)\rvert dx\le 2\sup\limits_{R>0}\frac{1}{R}\int\lvert K(x)\rvert\lvert x\rvert dx$

Published on 16 Apr 2026 - 0:58

3k

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How do I approximate a staircase function (rounding) with triangle wave?

Published on 10 Apr 2026 - 1:55

388

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A version of Fourier inversion formula for finite groups

Published on 11 Apr 2026 - 19:12

950

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Finding the peak and width of Fourier spectrum

Published on 12 Apr 2026 - 10:49

43

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Are sums of parametrized rational functions rational?

Published on 12 Apr 2026 - 1:52

32

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Fourier spectrum with no peak?

Published on 11 Apr 2026 - 15:45

80

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The convergemce of the fourier series

Published on 14 Apr 2026 - 4:32

165

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Fourier Transform of $f'(x)$

Published on 12 Apr 2026 - 15:19

List Question

Basic Fourier Transform

Fourier transform for an auto correlation function

$L_p$ norm of the Dirichlet Kernel

Where is the wild use of the Dirac delta function in physics justfied?

properties of solution of heat-equation

Application of the Riesz Theorem to Fourier Series

proof of $\lim_\limits{m\to\infty}\frac1m\sum_\limits{n=1}^m f(an)=\int_\limits{0}^1fdx$

Why is $\sup\limits_{R>0}\int\lvert K(x)\rvert dx\le 2\sup\limits_{R>0}\frac{1}{R}\int\lvert K(x)\rvert\lvert x\rvert dx$

How do I approximate a staircase function (rounding) with triangle wave?

A version of Fourier inversion formula for finite groups

Finding the peak and width of Fourier spectrum

Are sums of parametrized rational functions rational?

Fourier spectrum with no peak?

The convergemce of the fourier series

Fourier Transform of $f'(x)$

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