List questions from harmonic-analysis

Published on 27 Mar 2026 - 20:27

182

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Fourier Stieltjes series of a positive measure

Published on 17 May 2019 - 12:05

53

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limit involving harmonic function

Published on 26 Mar 2026 - 12:32

59

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An inequality for norms involving convolutions

Published on 27 Mar 2026 - 11:46

162

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Understanding proof: if $u: \Omega \subset \mathbb{R}^N \to \mathbb{R}$ is harmonic and $\nabla u \in L^2(\mathbb{R}^N)$, then $u$ is constant.

Published on 26 Mar 2026 - 16:07

310

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Gaussians and Young's inequality for convolutions

Published on 21 May 2019 - 11:55

37

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Harmonic Analysis on a Finitely-Generated Matrix Group

Published on 26 Mar 2026 - 7:41

65

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Can analytic continuation be applied to real functions? e.g. $f(x) = a\sin x + b\cos x$ in $[0,17]$

Published on 29 Mar 2026 - 14:31

50

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Is it possible to conclude a $L^1$ function 0 almost everywhere using it fourier transformation?

Published on 26 May 2019 - 4:33

93

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Is a Schwartz space closed under fractional Fourier transforms?

Published on 25 Mar 2026 - 18:47

75

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Numerically approximating functions on the sphere by rotating zonal harmonics.

Published on 25 Mar 2026 - 6:39

239

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Decay of non-negative functions with compact Fourier support

Published on 29 Mar 2026 - 23:59

206

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Existence of a certain Schwartz function with compact Fourier support

Published on 29 Mar 2026 - 23:58

219

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What is meant by an analytic function on a Lie group?

Published on 02 Jun 2019 - 0:56

364

Views

equality in proof that atoms are in $H^p$

Published on 04 Jun 2019 - 22:48

List Question

Different behavior of the Klein-Gordon equation

Fourier Stieltjes series of a positive measure

limit involving harmonic function

An inequality for norms involving convolutions

Understanding proof: if $u: \Omega \subset \mathbb{R}^N \to \mathbb{R}$ is harmonic and $\nabla u \in L^2(\mathbb{R}^N)$, then $u$ is constant.

Gaussians and Young's inequality for convolutions

Harmonic Analysis on a Finitely-Generated Matrix Group

Can analytic continuation be applied to real functions? e.g. $f(x) = a\sin x + b\cos x$ in $[0,17]$

Is it possible to conclude a $L^1$ function 0 almost everywhere using it fourier transformation?

Is a Schwartz space closed under fractional Fourier transforms?

Numerically approximating functions on the sphere by rotating zonal harmonics.

Decay of non-negative functions with compact Fourier support

Existence of a certain Schwartz function with compact Fourier support

What is meant by an analytic function on a Lie group?

equality in proof that atoms are in $H^p$

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