List questions from fourier-analysis

Published on 17 Apr 2026 - 10:56

11.8k

Views

Prove the Fourier transform is a unitary linear operator

Published on 09 Apr 2026 - 17:33

7.7k

Views

Matrix Notation of Inverse Discrete Fourier Transform

Published on 15 Apr 2026 - 7:11

51

Views

How do I solve this differential equation (involving Fourier series)

Published on 17 Apr 2026 - 13:11

125

Views

I know a function $f(x)$, how can I show it's equal to a known Fourier series, using geometric series

Published on 17 Apr 2026 - 19:59

43

Views

Equation involving summations and complex exponentials

Published on 17 Apr 2026 - 12:36

4k

Views

Fourier series for square wave signal

Published on 17 Apr 2026 - 17:10

1.3k

Views

Prove that $\|u\|_{L^\infty(\mathbb R)} \le C\|u\|_{H^1(\mathbb R)}$

Published on 14 Apr 2026 - 16:28

174

Views

Connection between the Dini criterion and differentiation from first principles

Published on 10 Apr 2026 - 18:46

33

Views

The evaluation of a trigonometric integral involving the Fourier transform

Published on 12 Apr 2026 - 20:53

49

Views

Integral evaluation for the Riesz means special case $s_n=1$

Published on 15 Apr 2026 - 23:31

89

Views

Show that $||\hat{f}||_{\infty}=||f||_1$

Published on 18 Apr 2026 - 3:23

412

Views

The decay conditions of the Poisson summation formula

Published on 12 Apr 2026 - 21:10

151

Views

Fourier transform

Published on 11 Apr 2026 - 10:59

364

Views

Stein and Shakarchi, Exercise 2.25

Published on 15 Apr 2026 - 8:32

List Question

Why my Fourier coefficients are all zeros?

Prove the Fourier transform is a unitary linear operator

Matrix Notation of Inverse Discrete Fourier Transform

How do I solve this differential equation (involving Fourier series)

I know a function $f(x)$, how can I show it's equal to a known Fourier series, using geometric series

Equation involving summations and complex exponentials

Fourier series for square wave signal

Prove that $\|u\|_{L^\infty(\mathbb R)} \le C\|u\|_{H^1(\mathbb R)}$

Connection between the Dini criterion and differentiation from first principles

The evaluation of a trigonometric integral involving the Fourier transform

Integral evaluation for the Riesz means special case $s_n=1$

Show that $||\hat{f}||_{\infty}=||f||_1$

The decay conditions of the Poisson summation formula

Fourier transform

Stein and Shakarchi, Exercise 2.25

Trending Questions

Popular # Hahtags

Popular Questions