List questions from harmonic-analysis

Published on 10 May 2026 - 19:35

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Lower Bound on Oscillatory Integral

Published on 14 Apr 2026 - 0:51

95

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Fourier Transform An FM synthesized wave.

Published on 11 Apr 2026 - 5:33

581

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Peter-Weyl Theorem on the Sphere

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567

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Good kernels that exist in the real world.

Published on 12 Apr 2026 - 12:57

261

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Is the Nelson-Laplacian $\sum_{i=1}^{n}X_{i}^{2}$ on a Lie group $G$ an elliptic differential operator?

Published on 10 May 2026 - 20:57

100

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Is there "multiplicative" analogue of Fourier transform?

Published on 10 May 2026 - 20:39

163

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Proving that VMO is a closed subspace of BMO

Published on 13 Apr 2026 - 14:53

60

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A question on the homogeneous subspaces on the unit circle

Published on 12 Apr 2026 - 18:35

185

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What is the continuous dual group of the multiplicative complex numbers?

Published on 10 Apr 2026 - 4:33

68

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Pointwise convergence of Fourier series of $f\in L^1[0,2\pi]$

Published on 14 Apr 2026 - 23:12

365

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Example of a continuous affine group action

Published on 29 Apr 2026 - 12:54

73

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What mathematics is helpful for studying $\int_{|\mathbf{x}|<R} d^n \mathbf x \frac{e^{i \mathbf k\cdot \mathbf x}}{|\mathbf x|^2+a^2}$?

Published on 17 Apr 2026 - 15:28

29

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Generalized functions transforming as 1/4-densities under diffeomorphisms

Published on 10 May 2026 - 11:40

253

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Is L^p norm-closed in the bounded continuous functions?

Published on 11 Apr 2026 - 19:23

List Question

How to bound this integral with the Hardy-Littlewood maximal function

Lower Bound on Oscillatory Integral

Fourier Transform An FM synthesized wave.

Peter-Weyl Theorem on the Sphere

Good kernels that exist in the real world.

Is the Nelson-Laplacian $\sum_{i=1}^{n}X_{i}^{2}$ on a Lie group $G$ an elliptic differential operator?

Is there "multiplicative" analogue of Fourier transform?

Proving that VMO is a closed subspace of BMO

A question on the homogeneous subspaces on the unit circle

What is the continuous dual group of the multiplicative complex numbers?

Pointwise convergence of Fourier series of $f\in L^1[0,2\pi]$

Example of a continuous affine group action

What mathematics is helpful for studying $\int_{|\mathbf{x}|<R} d^n \mathbf x \frac{e^{i \mathbf k\cdot \mathbf x}}{|\mathbf x|^2+a^2}$?

Generalized functions transforming as 1/4-densities under diffeomorphisms

Is L^p norm-closed in the bounded continuous functions?

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