List questions from fourier-analysis

Published on 12 Apr 2026 - 12:14

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Complex Fourier series and half-range expansions

Published on 12 Apr 2026 - 11:11

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Connecting First Passage Time to Power Spectrum

Published on 12 Apr 2026 - 7:33

78

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A neat characterization of measurable functions $f:\mathbb R\rightarrow \mathbb C$ for which $\lim_R\int_{-R}^R|f|dx<\infty$

Published on 16 Apr 2026 - 13:58

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definition of Fourier transform questions

Published on 10 Apr 2026 - 21:18

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Counting solutions by estimating Fourier coefficients

Published on 11 Apr 2026 - 10:02

312

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Find the spectrum of an operator related to Fourier series

Published on 14 Apr 2026 - 13:45

714

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inverse Fourier transform of compactly supported function is in $L^1$

Published on 17 Apr 2026 - 13:23

891

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$\lim_{\lambda \to \infty} \int^b_0 f(t) \frac{\sin(\lambda t)}{t} $

Published on 15 Apr 2026 - 21:28

86

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Fourier coefficents of harmoinc $L^{1}$ functions in the disk

Published on 15 Apr 2026 - 6:39

128

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Getting the DFT of irregularly spaced points

Published on 12 Apr 2026 - 19:40

825

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Convex basis of functions

Published on 12 Apr 2026 - 17:10

1.7k

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Complex Frequency Shifting in Fourier Transform

Published on 09 Apr 2026 - 12:06

120

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Bounds for the Fourier transform of characteristic functions on $\mathbb{Z}/N\mathbb{Z}$ supported on large sets

Published on 25 Mar 2026 - 21:17

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find $f\in L^2([0,\pi])$ such that its $L^2$ distance to $\sin(x)$ and $\cos(x)$ are both bounded by specific constants

Published on 16 Apr 2026 - 21:11

List Question

How to evaluate chirp transform in O(nlgn) time?

Complex Fourier series and half-range expansions

Connecting First Passage Time to Power Spectrum

A neat characterization of measurable functions $f:\mathbb R\rightarrow \mathbb C$ for which $\lim_R\int_{-R}^R|f|dx<\infty$

definition of Fourier transform questions

Counting solutions by estimating Fourier coefficients

Find the spectrum of an operator related to Fourier series

inverse Fourier transform of compactly supported function is in $L^1$

$\lim_{\lambda \to \infty} \int^b_0 f(t) \frac{\sin(\lambda t)}{t} $

Fourier coefficents of harmoinc $L^{1}$ functions in the disk

Getting the DFT of irregularly spaced points

Convex basis of functions

Complex Frequency Shifting in Fourier Transform

Bounds for the Fourier transform of characteristic functions on $\mathbb{Z}/N\mathbb{Z}$ supported on large sets

find $f\in L^2([0,\pi])$ such that its $L^2$ distance to $\sin(x)$ and $\cos(x)$ are both bounded by specific constants

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