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Using a derivative to find fourier coefficients

score 1.2k · Answer 1 · 2026-04-13 21:36:51

1.2k

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Using a derivative to find fourier coefficients

Published on 13 Apr 2026 - 21:36

score 415 · Answer 2 · 2026-04-14 02:28:55

415

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Find the fourier series of a piecewise continuous function

Published on 14 Apr 2026 - 2:28

score 210 · Answer 3 · 2026-04-12 15:56:38

210

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What do functions which are close to zero in $L^2$ look like?

Published on 12 Apr 2026 - 15:56

score 39 · Answer 4 · 2026-04-08 16:19:14

39

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Possible Typo In Book About Discrete Fourier Transforms

Published on 08 Apr 2026 - 16:19

score 39 · Answer 5 · 2026-04-12 15:19:02

39

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Fourier transform of $(1 + \mathrm{i} a \ \mathrm{sign} ( t))^{-1}$?

Published on 12 Apr 2026 - 15:19

score 1.1k · Answer 6 · 2026-04-09 08:48:02

1.1k

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Continuous, absolutely integrable, unbounded function

Published on 09 Apr 2026 - 8:48

score 660 · Answer 7 · 2026-04-16 02:30:54

660

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Proof of the elliptic regularity theorem for differential operators $P(D)=\sum_{|\alpha|\leq m} a_\alpha D^\alpha $, $a_\alpha \in \mathbb{C}$

Published on 16 Apr 2026 - 2:30

score 30.5k · Answer 8 · 2026-04-08 17:43:25

30.5k

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The Fourier transform of a "comb function" is a comb function?

Published on 08 Apr 2026 - 17:43

score 56 · Answer 9 · 2026-04-15 15:52:33

56

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Simpler expresion for the integral $\int_{\mathbb S^{2}}\operatorname e^{-i\left<x,\omega \right>} d\sigma(\omega)$

Published on 15 Apr 2026 - 15:52

score 74 · Answer 10 · 2026-04-14 20:49:07

74

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How to rearrange and equate the series coefficients in a Fourier-Bessel type equation

Published on 14 Apr 2026 - 20:49

score 1k · Answer 11 · 2026-04-15 04:45:19

1k

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Generalising Parseval's Identity using the Convolution Theorem

Published on 15 Apr 2026 - 4:45

score 235 · Answer 12 · 2026-04-10 00:13:27

235

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Recurrence equation from an infinite Fourier series

Published on 10 Apr 2026 - 0:13

score 145 · Answer 13 · 2026-04-11 01:15:37

145

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Integral of complex exponential in a proof of the cross-correlation theorem

Published on 11 Apr 2026 - 1:15

score 310 · Answer 14 · 2026-04-12 17:00:14

310

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What are the 'iff' conditions for the integral of a periodic function over one period to be zero?

Published on 12 Apr 2026 - 17:00

score 143 · Answer 15 · 2026-04-11 14:46:37

143

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Show that a function has the same period as another from a fourier series

Published on 11 Apr 2026 - 14:46

List Question

Using a derivative to find fourier coefficients

Find the fourier series of a piecewise continuous function

What do functions which are close to zero in $L^2$ look like?

Possible Typo In Book About Discrete Fourier Transforms

Fourier transform of $(1 + \mathrm{i} a \ \mathrm{sign} ( t))^{-1}$?

Continuous, absolutely integrable, unbounded function

Proof of the elliptic regularity theorem for differential operators $P(D)=\sum_{|\alpha|\leq m} a_\alpha D^\alpha $, $a_\alpha \in \mathbb{C}$

The Fourier transform of a "comb function" is a comb function?

Simpler expresion for the integral $\int_{\mathbb S^{2}}\operatorname e^{-i\left<x,\omega \right>} d\sigma(\omega)$

How to rearrange and equate the series coefficients in a Fourier-Bessel type equation

Generalising Parseval's Identity using the Convolution Theorem

Recurrence equation from an infinite Fourier series

Integral of complex exponential in a proof of the cross-correlation theorem

What are the 'iff' conditions for the integral of a periodic function over one period to be zero?

Show that a function has the same period as another from a fourier series

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