List questions from fourier-transform

Published on 12 Apr 2026 - 1:19

211

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Fourier Transform of delta(2n)

Published on 09 Apr 2026 - 12:29

133

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idempotent matrices and transformations

Published on 26 Jun 2016 - 7:41

55

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Need help with the integral for this inverse Fourier transform.

Published on 11 Apr 2026 - 9:01

99

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Finding $f \in L^p(\mathbb{R}^n)$ such that $\hat{f} \notin L^p(\mathbb{R}^n)$

Published on 07 Apr 2026 - 4:46

86

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Fourier Series of this function

Published on 10 Apr 2026 - 8:34

147

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Calculate $\int_{-\infty}^{\infty}\frac{\sin(t)}{t}f(t)dt$

Published on 01 Jul 2016 - 15:24

77

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Calculating integral value of Fourier series

Published on 26 Mar 2026 - 14:43

799

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Fourier cosine transforms of Schwartz functions and the Fejer-Riesz theorem

Published on 28 Mar 2026 - 22:28

26

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Discrete Fourier transform - seemingly different definitions

Published on 01 Apr 2026 - 3:40

54

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Why $(2\pi x)^\alpha f(x)(2\pi i\xi)^\beta e^{-2i\pi x\cdot \xi}=(\partial _x)^\beta [(2\pi x)^\alpha f(x)]e^{-2i\pi x\cdot \xi}$?

Published on 07 Apr 2026 - 6:15

435

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Is there a theorem that tells us that $\widehat{f\circ g}=\hat f(\hat g)$?

Published on 04 Jul 2016 - 9:56

1.6k

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The Fourier transform of the Bartlett (triangular) window

Published on 11 Apr 2026 - 13:42

656

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Arnold's Trivium problem 51

Published on 05 Apr 2026 - 4:12

18.6k

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Solving an initial value ODE problem using Fourier transform

Published on 26 Mar 2026 - 22:12

List Question

Square-integrability of Fourier transform

Fourier Transform of delta(2n)

idempotent matrices and transformations

Need help with the integral for this inverse Fourier transform.

Finding $f \in L^p(\mathbb{R}^n)$ such that $\hat{f} \notin L^p(\mathbb{R}^n)$

Fourier Series of this function

Calculate $\int_{-\infty}^{\infty}\frac{\sin(t)}{t}f(t)dt$

Calculating integral value of Fourier series

Fourier cosine transforms of Schwartz functions and the Fejer-Riesz theorem

Discrete Fourier transform - seemingly different definitions

Why $(2\pi x)^\alpha f(x)(2\pi i\xi)^\beta e^{-2i\pi x\cdot \xi}=(\partial _x)^\beta [(2\pi x)^\alpha f(x)]e^{-2i\pi x\cdot \xi}$?

Is there a theorem that tells us that $\widehat{f\circ g}=\hat f(\hat g)$?

The Fourier transform of the Bartlett (triangular) window

Arnold's Trivium problem 51

Solving an initial value ODE problem using Fourier transform

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