List questions from harmonic-analysis

Published on 07 Jun 2015 - 3:23

117

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Limit of imaginary part divided by real part of an entire function on the complex plane

Published on 07 Jun 2015 - 22:31

215

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Schrödinger operator with delta (zero range) interaction.

Published on 31 Mar 2026 - 18:19

144

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Estimate of a convolution from a paper by Michael Christ

Published on 03 Apr 2026 - 4:39

97

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From Folland Abstract Harmonic Analysis - Why is $\int f(x \xi) d\xi = \int f(x \xi^{-1}) \Delta_H(\xi^{-1}) d \xi$?

Published on 26 Mar 2026 - 11:01

947

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Fourier Uniqueness Theorem: Proof?

Published on 08 Jun 2015 - 23:40

114

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Explain this proof in more details

Published on 09 Jun 2015 - 17:24

125

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$L^1$ Estimates involving bi-Laplacian

Published on 11 Jun 2015 - 3:26

71

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Check smoothness at point looking at Fourier transform

Published on 03 Apr 2026 - 12:10

319

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Confusion in Ahlfors, third edition, page 210, proof of Hadamard's theorem

Published on 13 Jun 2015 - 5:12

161

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Explain the proof of proposition (3.4) of Gerald B. Folland "A Course in Abstract Harmonic Analysis" book

Published on 13 Jun 2015 - 13:34

397

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Hausdorff-Young / Restriction Inequality

Published on 17 Jun 2015 - 21:01

79

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Fourier transform division theorem in $\mathbb R^n$

Published on 18 Jun 2015 - 15:23

272

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Sets of Divergence for Fourier Partial Integals

Published on 23 Jun 2015 - 21:56

434

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$L^{2}$ Approximation Error of Fourier Series of Union of Disjoint Arcs

Published on 25 Jun 2015 - 13:35

List Question

Complex logarithm of $(1-z)$ on $\{z:\Re(z) < 1\}$

Limit of imaginary part divided by real part of an entire function on the complex plane

Schrödinger operator with delta (zero range) interaction.

Estimate of a convolution from a paper by Michael Christ

From Folland Abstract Harmonic Analysis - Why is $\int f(x \xi) d\xi = \int f(x \xi^{-1}) \Delta_H(\xi^{-1}) d \xi$?

Fourier Uniqueness Theorem: Proof?

Explain this proof in more details

$L^1$ Estimates involving bi-Laplacian

Check smoothness at point looking at Fourier transform

Confusion in Ahlfors, third edition, page 210, proof of Hadamard's theorem

Explain the proof of proposition (3.4) of Gerald B. Folland "A Course in Abstract Harmonic Analysis" book

Hausdorff-Young / Restriction Inequality

Fourier transform division theorem in $\mathbb R^n$

Sets of Divergence for Fourier Partial Integals

$L^{2}$ Approximation Error of Fourier Series of Union of Disjoint Arcs

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