List questions from harmonic-analysis

Published on 07 Oct 2019 - 1:22

69

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Representation of $C^*$- algebras

Published on 30 Mar 2026 - 3:19

108

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Behavior of Poisson Integral Formula for Half Space

Published on 27 Mar 2026 - 19:09

151

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Question on a claim in a paper

Published on 25 Mar 2026 - 17:44

189

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Understanding a comment of the maximal function in Stein's Singular Integrals and Differentiability Properties of Functions

Published on 13 Oct 2019 - 3:21

96

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Estimative for gradient of harmonic function

Published on 25 Mar 2026 - 19:00

81

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Mikhlin multiplier theorem at origin?

Published on 17 Oct 2019 - 3:24

34

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Why does it follow that $\int f\Delta f = 0$ over a closed surface when $\Delta f \geq 0$ everywhere?

Published on 17 Oct 2019 - 16:30

43

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Orthogonality of $L^2(G)$ for a compact group

Published on 19 Oct 2019 - 21:56

47

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The relation between L1 norn and the fourier coefficient?

Published on 20 Oct 2019 - 7:13

255

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Proving the Stein-Weiss inequality

Published on 27 Mar 2026 - 5:02

105

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$\Delta u = 0$ in $B^{+}\cap \{x_{n} > 0\}$ and $u = u_{x_{n}} = 0$ in $\{x_{n} = 0\}$ $\implies $ $u = 0$.

Published on 27 Mar 2026 - 21:03

170

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On the Extension of the Fourier Transform to $L^2$ from $\mathcal{S}$

Published on 31 Mar 2026 - 5:22

1.3k

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Proving $\sum_{k = 1}^{\infty} k^{-2} = \pi^2 / 6$ using Fourier analysis

Published on 31 Mar 2026 - 3:08

605

Views

Boundedness of Riesz Transform on (subsets of) Hölder spaces?

Published on 25 Mar 2026 - 10:57

List Question

Bound for Fourier Sum

Representation of $C^*$- algebras

Behavior of Poisson Integral Formula for Half Space

Question on a claim in a paper

Understanding a comment of the maximal function in Stein's Singular Integrals and Differentiability Properties of Functions

Estimative for gradient of harmonic function

Mikhlin multiplier theorem at origin?

Why does it follow that $\int f\Delta f = 0$ over a closed surface when $\Delta f \geq 0$ everywhere?

Orthogonality of $L^2(G)$ for a compact group

The relation between L1 norn and the fourier coefficient?

Proving the Stein-Weiss inequality

$\Delta u = 0$ in $B^{+}\cap \{x_{n} > 0\}$ and $u = u_{x_{n}} = 0$ in $\{x_{n} = 0\}$ $\implies $ $u = 0$.

On the Extension of the Fourier Transform to $L^2$ from $\mathcal{S}$

Proving $\sum_{k = 1}^{\infty} k^{-2} = \pi^2 / 6$ using Fourier analysis

Boundedness of Riesz Transform on (subsets of) Hölder spaces?

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