List questions from harmonic-analysis

Published on 17 Aug 2017 - 10:50

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Dense subset of $L^2$ of product space with separated variables?

Published on 17 Aug 2017 - 17:06

100

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Is the closure of a topological torsion LCA group still topological torsion?

Published on 02 Apr 2026 - 3:41

44

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Construct function with Fourier transform compactly supported in interval $[-k,k]$.

Published on 19 Aug 2017 - 1:20

536

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Prove the following beta integral identity

Published on 27 Mar 2026 - 21:44

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Mixed Derivative bounded by Laplacian in 2D?

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76

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One-dimensional representation of $H^3$

Published on 29 Mar 2026 - 3:52

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Simple proof that Fourier transform is an isomorphism between $L^p$ spaces for $p \neq 2$?

Published on 27 Mar 2026 - 3:42

294

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Extension of Pseudodifferential Operator to the real line

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Show this a tempered distribution

Published on 29 Mar 2026 - 5:42

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extension of certain invariant distributions

Published on 07 Apr 2026 - 17:48

325

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Random spherical Harmonics on $\mathbb{S}^2$

Published on 26 Mar 2026 - 17:28

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Proof of Hölder for Lorentz spaces (harmonic analysis)

Published on 08 Apr 2026 - 4:45

53

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Fourier Translation ,How to prove 1 and 2?

Published on 11 Sep 2017 - 8:19

680

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A guess related to Lebesgue differentiation theorem

Published on 11 Sep 2017 - 9:00

List Question

Can the generalised Riemann-Lebesgue Lemma be proven without Gelfand theory?

Dense subset of $L^2$ of product space with separated variables?

Is the closure of a topological torsion LCA group still topological torsion?

Construct function with Fourier transform compactly supported in interval $[-k,k]$.

Prove the following beta integral identity

Mixed Derivative bounded by Laplacian in 2D?

One-dimensional representation of $H^3$

Simple proof that Fourier transform is an isomorphism between $L^p$ spaces for $p \neq 2$?

Extension of Pseudodifferential Operator to the real line

Show this a tempered distribution

extension of certain invariant distributions

Random spherical Harmonics on $\mathbb{S}^2$

Proof of Hölder for Lorentz spaces (harmonic analysis)

Fourier Translation ,How to prove 1 and 2?

A guess related to Lebesgue differentiation theorem

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