List questions from harmonic-analysis

Published on 11 Apr 2026 - 22:22

116

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Additive-Group-Homomorphisms from a Local Field to the Non-zero complex numbers

Published on 10 May 2026 - 18:43

63

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Intersection of connected components with discrete subgroup

Published on 12 Apr 2026 - 1:50

385

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Fourier Transform on $L^1$ is not surjective.

Published on 10 Apr 2026 - 16:03

214

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What is Littlewood–Paley theory?

Published on 15 May 2026 - 0:17

329

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Harmonic polynomials invariant under the action of a group

Published on 13 Apr 2026 - 0:01

10k

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Show that the function $u(x,y) =e^{x^2−y^2}\cos(2xy )$is harmonic. Find the harmonic conjugate v of u, up to addition of a constant.

Published on 10 May 2026 - 19:25

329

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Is there a name for the set defined by the Minkowski sum of circles in orthogonal planes?

Published on 17 Apr 2026 - 5:07

311

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A question on Rudin's "proof" of the associativity of the convolution of two measures

Published on 12 Apr 2026 - 0:03

65

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anton deitmar harmonic analysis exercise

Published on 08 Apr 2026 - 23:30

204

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Support of a Measure (Singular to Lebesgue)

Published on 27 Apr 2026 - 20:13

410

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Understanding the proof of the Hausdorff-Young theorem

Published on 08 Apr 2026 - 16:42

66

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Solving complex analysis problem without complex analysis

Published on 11 May 2026 - 2:01

325

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Showing that a harmonic function is constant

Published on 09 Apr 2026 - 13:41

313

Views

Potential Theory vs Harmonic Analysis

Published on 10 May 2026 - 23:53

List Question

In Banach *-algebra, every positive linear functional is bounded.

Additive-Group-Homomorphisms from a Local Field to the Non-zero complex numbers

Intersection of connected components with discrete subgroup

Fourier Transform on $L^1$ is not surjective.

What is Littlewood–Paley theory?

Harmonic polynomials invariant under the action of a group

Show that the function $u(x,y) =e^{x^2−y^2}\cos(2xy )$is harmonic. Find the harmonic conjugate v of u, up to addition of a constant.

Is there a name for the set defined by the Minkowski sum of circles in orthogonal planes?

A question on Rudin's "proof" of the associativity of the convolution of two measures

anton deitmar harmonic analysis exercise

Support of a Measure (Singular to Lebesgue)

Understanding the proof of the Hausdorff-Young theorem

Solving complex analysis problem without complex analysis

Showing that a harmonic function is constant

Potential Theory vs Harmonic Analysis

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