List questions from harmonic-analysis

Published on 14 Apr 2026 - 2:19

56

Views

Prove that $\int_{-\pi}^{\pi} \| f(x)-g(x)\|^2dx \leq 2\sup\limits_{x \in [-\pi, \pi]}f(x) \int_{-\pi}^{\pi} \| f(x)-g(x)\|dx$

Published on 16 Apr 2026 - 6:14

103

Views

Three circle theorem subharmonic functions

Published on 14 Apr 2026 - 5:18

51

Views

The second term of a Fourier series

Published on 12 Apr 2026 - 12:14

153

Views

Non constant and bounded discrite harmonic function

Published on 09 Apr 2026 - 15:09

40

Views

Why $\overline{\hat{f}(k)}=\hat{f}(-k)$ If $f \in \mathbb{R}$

Published on 16 Apr 2026 - 6:03

301

Views

Lower $L^1$ Bound for Dirichlet Kernal inequity problem

Published on 12 Apr 2026 - 20:28

52

Views

Are good kernels trigonometric polynomials?

Published on 12 Apr 2026 - 3:17

68

Views

Harmonic function and complex analysis can't prove a result.

Published on 08 Apr 2026 - 23:02

75

Views

Grafakos Classical Fourier Analysis - Explanation of Theorem 2.3.20

Published on 11 Apr 2026 - 20:49

79

Views

Calculate the values of the serieses

Published on 13 Apr 2026 - 23:20

78

Views

The Marcinkiewicz interpolation theorem(Folland's book)

Published on 13 Apr 2026 - 17:14

156

Views

Measure Preserving Self-Map of Compact Abelian Group Commuting with Ergodic Translation

Published on 11 Apr 2026 - 20:55

109

Views

Is the $n/2$-th heat kernel coefficient topological?

Published on 13 Apr 2026 - 0:34

57

Views

The maximal characterization of real Hardy space.

Published on 13 Apr 2026 - 11:38

List Question

Approximating Chebyshev Polynomials by Truncated Fourier Series

Prove that $\int_{-\pi}^{\pi} \| f(x)-g(x)\|^2dx \leq 2\sup\limits_{x \in [-\pi, \pi]}f(x) \int_{-\pi}^{\pi} \| f(x)-g(x)\|dx$

Three circle theorem subharmonic functions

The second term of a Fourier series

Non constant and bounded discrite harmonic function

Why $\overline{\hat{f}(k)}=\hat{f}(-k)$ If $f \in \mathbb{R}$

Lower $L^1$ Bound for Dirichlet Kernal inequity problem

Are good kernels trigonometric polynomials?

Harmonic function and complex analysis can't prove a result.

Grafakos Classical Fourier Analysis - Explanation of Theorem 2.3.20

Calculate the values of the serieses

The Marcinkiewicz interpolation theorem(Folland's book)

Measure Preserving Self-Map of Compact Abelian Group Commuting with Ergodic Translation

Is the $n/2$-th heat kernel coefficient topological?

The maximal characterization of real Hardy space.

Trending Questions

Popular # Hahtags

Popular Questions