List questions from fourier-analysis

Published on 12 Apr 2026 - 1:06

144

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i want to prove that the forier transform of sinc(100t) is a pulse by integration ..

Published on 15 Apr 2026 - 5:58

210

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Proving $\int_{-\pi}^{\pi} |f''(x)|^2dx\leq \left(\int_{-\pi}^{\pi} |f(x)|^2dx\right)^{1/2}\cdot\left(\int_{-\pi}^{\pi} |f''''(x)|^2dx\right)^{1/2}$

Published on 14 May 2026 - 1:22

521

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Convolutions and the convolution theorem

Published on 10 May 2026 - 20:49

135

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How to calculate the Fourier series for spike train given the Fourier series of square wave?

Published on 11 May 2026 - 1:53

587

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Why does this fourier transform of the delta train yeild infinity as a result?

Published on 10 May 2026 - 20:03

355

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What do first terms in Fourier expansion of a function mean?

Published on 11 May 2026 - 4:06

58

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Parseval Relation for Dilated Function on Integers

Published on 13 Apr 2026 - 16:38

116

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Fourier transform and stuff

Published on 11 May 2026 - 9:55

681

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Convergence of Fourier Coefficients of a function implies the function is infinitely differentiable

Published on 11 Apr 2026 - 8:08

323

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Fourier Transform - Electrodynamics

Published on 10 May 2026 - 16:50

331

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Finding nonzero Fourier terms of a function in $L_2(0,1)$

Published on 12 Apr 2026 - 17:52

97

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Calcul of an expression with Fourier and logarithm

Published on 10 May 2026 - 20:53

216

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Triebel-Lizorkin space $F_{p,q}^s(\mathbb{R}^d)$, $p=\infty$

Published on 14 May 2026 - 9:02

278

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Understanding uniform bound for partial sum

Published on 11 Apr 2026 - 12:19

List Question

Fourier series and continuity

i want to prove that the forier transform of sinc(100t) is a pulse by integration ..

Proving $\int_{-\pi}^{\pi} |f''(x)|^2dx\leq \left(\int_{-\pi}^{\pi} |f(x)|^2dx\right)^{1/2}\cdot\left(\int_{-\pi}^{\pi} |f''''(x)|^2dx\right)^{1/2}$

Convolutions and the convolution theorem

How to calculate the Fourier series for spike train given the Fourier series of square wave?

Why does this fourier transform of the delta train yeild infinity as a result?

What do first terms in Fourier expansion of a function mean?

Parseval Relation for Dilated Function on Integers

Fourier transform and stuff

Convergence of Fourier Coefficients of a function implies the function is infinitely differentiable

Fourier Transform - Electrodynamics

Finding nonzero Fourier terms of a function in $L_2(0,1)$

Calcul of an expression with Fourier and logarithm

Triebel-Lizorkin space $F_{p,q}^s(\mathbb{R}^d)$, $p=\infty$

Understanding uniform bound for partial sum

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