List questions from harmonic-analysis

Published on 11 Apr 2026 - 13:16

49

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Translating compact sets in locally compact groups

Published on 10 Apr 2026 - 3:05

65

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Finite Fourier Transformation

Published on 08 Apr 2026 - 19:37

137

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Stationarity of harmonic process

Published on 14 May 2026 - 7:31

887

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Set of square integrable functions as infinite dimensional linear vector spaces

Published on 15 Apr 2026 - 23:54

309

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Fourier Expansion in Siegel Modular forms

Published on 14 May 2026 - 18:22

167

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If $T$ is a bounded linear operator from $L^p(\mathbb{R})$ to $L^q(\mathbb{R})$ and $T$ is non-zero, then $p \leq q$

Published on 15 Apr 2026 - 22:29

161

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Boundedness of Poisson Integral

Published on 10 Apr 2026 - 22:05

145

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Rough Cutoff of Fourier Transform

Published on 15 Apr 2026 - 3:47

413

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Linear combination of Dirac delta distribution and its derivatives

Published on 11 Apr 2026 - 13:39

66

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$\lim_{n \to \infty}\|\hat f_n \cdot g-g\|_1 \to 0$ for $f_n(x)=\sqrt{2\pi} \cdot \max(0,n-n^2 |x|)$

Published on 17 Apr 2026 - 1:06

205

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Equip the additive group $\mathbb{R}/\mathbb{Z}$ with the discrete topology. What is its Pontryagin Dual?

Published on 09 Apr 2026 - 18:33

77

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Some Inequality from Fourier Series

Published on 12 Apr 2026 - 23:20

256

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Fourier Series of a piecewise function

Published on 10 May 2026 - 18:23

106

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$\Delta u = 1$ and $u$ convex $\implies$ $u$ quadratic polynomial

Published on 13 Apr 2026 - 16:26

List Question

Estimate of a certain Hardy-Littlewood maximal function at infinity

Translating compact sets in locally compact groups

Finite Fourier Transformation

Stationarity of harmonic process

Set of square integrable functions as infinite dimensional linear vector spaces

Fourier Expansion in Siegel Modular forms

If $T$ is a bounded linear operator from $L^p(\mathbb{R})$ to $L^q(\mathbb{R})$ and $T$ is non-zero, then $p \leq q$

Boundedness of Poisson Integral

Rough Cutoff of Fourier Transform

Linear combination of Dirac delta distribution and its derivatives

$\lim_{n \to \infty}\|\hat f_n \cdot g-g\|_1 \to 0$ for $f_n(x)=\sqrt{2\pi} \cdot \max(0,n-n^2 |x|)$

Equip the additive group $\mathbb{R}/\mathbb{Z}$ with the discrete topology. What is its Pontryagin Dual?

Some Inequality from Fourier Series

Fourier Series of a piecewise function

$\Delta u = 1$ and $u$ convex $\implies$ $u$ quadratic polynomial

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