List questions from fourier-series

Published on 04 May 2026 - 12:21

88

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Does this function have a Fourier Series representation?

Published on 08 Apr 2026 - 22:48

81

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DFT sort coefficients in Fourier Series

Published on 14 Apr 2026 - 23:04

50

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Periodic function $f$ with Fourier coefficients $c_n (f)= 1$ for $n\geq 0$ and $-1$ otherwise

Published on 17 Apr 2026 - 18:07

153

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Polar Form of the 2d DFT

Published on 22 Apr 2026 - 12:03

528

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Fourier series for exponential function

Published on 09 Apr 2026 - 3:13

111

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Series expansion of $x$ in terms of $\sin(\frac{x}{n})$

Published on 14 May 2026 - 12:24

53

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How to formally express a function defined on unit disk?

Published on 22 Apr 2026 - 11:45

112

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Existence of probability density on $S^1$ with first circular moment on $S^1$

Published on 15 Apr 2026 - 10:51

45

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Solution to $u_{yyyy} = u_{xx}$ subject to a range of BCs - how to determine coefficients in general?

Published on 14 Apr 2026 - 17:14

48

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determining the limiting behavior of a function defined by a Fourier transform

Published on 04 May 2026 - 13:43

152

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Series in a Hilbert space and Fourier coefficients.

Published on 13 Apr 2026 - 17:45

78

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$x''+\omega^2x = \exp(-\mu t)$

Published on 14 Apr 2026 - 19:20

49

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Fourier series for $f(x) = 0$ when $0 \lt x \leq \frac{\pi}{2}$ and $1$ when $\frac{\pi}{2} \lt x \leq \pi$

Published on 13 Apr 2026 - 15:10

56

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Proving $\sum_{n=-\infty}^\infty |\hat{f}(2n) |^2=\frac{1}{2}\int_0^1\bigg(f(x)^2+f(x)f\big(x+\frac{1}{2}\big)\bigg)$ for $f \in PC$, $1$-periodic

Published on 17 Apr 2026 - 14:40

List Question

Using non-integer inputs for the Fourier Series

Does this function have a Fourier Series representation?

DFT sort coefficients in Fourier Series

Periodic function $f$ with Fourier coefficients $c_n (f)= 1$ for $n\geq 0$ and $-1$ otherwise

Polar Form of the 2d DFT

Fourier series for exponential function

Series expansion of $x$ in terms of $\sin(\frac{x}{n})$

How to formally express a function defined on unit disk?

Existence of probability density on $S^1$ with first circular moment on $S^1$

Solution to $u_{yyyy} = u_{xx}$ subject to a range of BCs - how to determine coefficients in general?

determining the limiting behavior of a function defined by a Fourier transform

Series in a Hilbert space and Fourier coefficients.

$x''+\omega^2x = \exp(-\mu t)$

Fourier series for $f(x) = 0$ when $0 \lt x \leq \frac{\pi}{2}$ and $1$ when $\frac{\pi}{2} \lt x \leq \pi$

Proving $\sum_{n=-\infty}^\infty |\hat{f}(2n) |^2=\frac{1}{2}\int_0^1\bigg(f(x)^2+f(x)f\big(x+\frac{1}{2}\big)\bigg)$ for $f \in PC$, $1$-periodic

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