List questions from fourier-analysis

Published on 14 Apr 2026 - 23:01

84

Views

What is the rate of convergence of $f^N(x) = \sum_{n=-N}^N f_n e^{in x}$ to $f(x) = \sum_{n=-\infty}^\infty f_n e^{in x}$ in $L^2([0,2\pi])$?

Published on 14 May 2026 - 7:03

60

Views

Sign of exponential in Fourier Coefficient

Published on 14 Apr 2026 - 14:11

123

Views

Fourier transform of surface measure, did I get it right?

Published on 10 May 2026 - 15:51

186

Views

$L^\infty (\Bbb R^n)$ bound for an inverse Fourier transform.

Published on 14 May 2026 - 11:37

72

Views

Discrete Fourier Transform factorisation

Published on 11 Apr 2026 - 15:16

85

Views

Solving equation related to fourier integral

Published on 11 Apr 2026 - 18:25

3.7k

Views

Can someone clearly explain the discrete Fourier transform (DFT)?

Published on 11 Apr 2026 - 4:40

1.8k

Views

Complex Fourier Series Coefficients

Published on 10 Apr 2026 - 19:31

2.1k

Views

How to choose between real and complex coefficients of Fourier series?

Published on 08 Apr 2026 - 22:12

663

Views

Fourier series and coefficients c1

Published on 16 Apr 2026 - 4:49

143

Views

Embedding property of homogeneous periodic Besov spaces

Published on 12 May 2026 - 16:33

80

Views

Continuity of evaluation map for characters of a LCA group

Published on 14 May 2026 - 10:14

88

Views

How to derive this integral identity?

Published on 09 Apr 2026 - 1:33

47

Views

Does $f$ periodic and continuous over $\Bbb R$ not imply that it is $L^p(0,T)\ \forall p\in[1,\infty]$ and the Fourier series converges a.e.?

Published on 15 Apr 2026 - 17:40

List Question

Proving a Fourier Polynomial Relation

What is the rate of convergence of $f^N(x) = \sum_{n=-N}^N f_n e^{in x}$ to $f(x) = \sum_{n=-\infty}^\infty f_n e^{in x}$ in $L^2([0,2\pi])$?

Sign of exponential in Fourier Coefficient

Fourier transform of surface measure, did I get it right?

$L^\infty (\Bbb R^n)$ bound for an inverse Fourier transform.

Discrete Fourier Transform factorisation

Solving equation related to fourier integral

Can someone clearly explain the discrete Fourier transform (DFT)?

Complex Fourier Series Coefficients

How to choose between real and complex coefficients of Fourier series?

Fourier series and coefficients c1

Embedding property of homogeneous periodic Besov spaces

Continuity of evaluation map for characters of a LCA group

How to derive this integral identity?

Does $f$ periodic and continuous over $\Bbb R$ not imply that it is $L^p(0,T)\ \forall p\in[1,\infty]$ and the Fourier series converges a.e.?

Trending Questions

Popular # Hahtags

Popular Questions