List questions from fourier-analysis

Published on 25 Mar 2019 - 4:08

185

Views

On conditions for Plancherel Theorem

Published on 22 Mar 2026 - 4:40

179

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Is $f(x) = \sum_{n\geq 1} \frac{\cos n x }{\sqrt{n}}$ monotonic on $(0,0.1)$?

Published on 26 Mar 2026 - 4:35

25

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Fourier transform: How long should the observed period be with respect to the frequencies that I expect to observe?

Published on 29 Mar 2026 - 3:36

71

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weighted inequality of Fourier transform

Published on 29 Mar 2026 - 12:05

90

Views

How to integrate the multiplication of a polynonmial, a fraction and an exponential

Published on 01 Apr 2026 - 10:28

382

Views

Prove that $ \int _{0}^{\infty}\frac{\sin x}{x}dx=\frac{\pi}{2}$

Published on 27 Mar 2019 - 4:52

1.3k

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For Fourier series, where does the $\pi$ and the $2\pi$ come from?

Published on 25 Mar 2026 - 22:04

105

Views

Question about schrodinger free equation

Published on 27 Mar 2026 - 5:11

6.8k

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Determine Discrete-Time Fourier Transform of exponential or sine with time-shift?

Published on 28 Mar 2026 - 4:00

485

Views

Function with uniformly but non absolutely convergent Fourier series

Published on 28 Mar 2019 - 9:19

59

Views

operator core of a fourier multiplier

Published on 25 Mar 2026 - 6:03

146

Views

Convolution of Delta Functions with a pole

Published on 27 Mar 2026 - 5:15

44

Views

How to integrate the multiplication of a polynomial, a fraction and an exponential in trigonometric equations

Published on 01 Apr 2026 - 10:28

39

Views

How do I use the laplace transformations to solve this initial value problem?

Published on 26 Mar 2026 - 1:27

List Question

Simplify $\langle f, S_{n}(f) \rangle$

On conditions for Plancherel Theorem

Is $f(x) = \sum_{n\geq 1} \frac{\cos n x }{\sqrt{n}}$ monotonic on $(0,0.1)$?

Fourier transform: How long should the observed period be with respect to the frequencies that I expect to observe?

weighted inequality of Fourier transform

How to integrate the multiplication of a polynonmial, a fraction and an exponential

Prove that $ \int _{0}^{\infty}\frac{\sin x}{x}dx=\frac{\pi}{2}$

For Fourier series, where does the $\pi$ and the $2\pi$ come from?

Question about schrodinger free equation

Determine Discrete-Time Fourier Transform of exponential or sine with time-shift?

Function with uniformly but non absolutely convergent Fourier series

operator core of a fourier multiplier

Convolution of Delta Functions with a pole

How to integrate the multiplication of a polynomial, a fraction and an exponential in trigonometric equations

How do I use the laplace transformations to solve this initial value problem?

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