List questions from fourier-analysis

Published on 10 Apr 2026 - 8:08

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Fourier transform of a 3sinc^2(100πt)

Published on 09 Apr 2026 - 19:19

1k

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Range of Fourier Tranform 0n $L_1(\mathbb{R})$ is dense in $C_0(\mathbb{R})$

Published on 16 Apr 2026 - 12:30

43

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Parametrization of arbitrary objects to display on an x-y-scope

Published on 11 Apr 2026 - 5:52

147

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Estimate $|S_n(x)|=\left|\sum _{k=1}^n \frac{\cos (2\pi \lambda_k x)}{\lambda_k}\right|$.

Published on 16 Apr 2026 - 16:14

6.8k

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Eigenvalues of Fourier Transform on Schwartz Functions

Published on 13 Apr 2026 - 12:51

94

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$\sum \limits_{k=1}^{\infty} \frac{1}{k} \cos 2\pi k \theta$ does not converge as $\theta \rightarrow 0?$

Published on 14 Apr 2026 - 4:26

79

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Can we determine whether $f\in L^{p}$ or not ; if we know $\hat{f}$

Published on 15 Apr 2026 - 11:24

59

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How to construct a continuous function that is (mean) convergent to a given square integrable function

Published on 11 Apr 2026 - 13:57

3.3k

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Deflection of String

Published on 13 Apr 2026 - 13:52

1.5k

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Gradient of the Fourier transform of a function

Published on 16 Apr 2026 - 6:28

502

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Discrete fractional fourier transform matrix

Published on 12 Apr 2026 - 12:21

124

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Rectangular Width Fourier Function

Published on 12 Apr 2026 - 13:28

71

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How to compute $\int _\mathbb{R}\frac{sin^{2n}t}{t^{2n}}dt$?

Published on 02 May 2026 - 18:35

82

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How to compute the Fourier transform of $\operatorname{rect}$?

Published on 10 Apr 2026 - 5:02

List Question

The proof of the Plancherel Theorem

Fourier transform of a 3sinc^2(100πt)

Range of Fourier Tranform 0n $L_1(\mathbb{R})$ is dense in $C_0(\mathbb{R})$

Parametrization of arbitrary objects to display on an x-y-scope

Estimate $|S_n(x)|=\left|\sum _{k=1}^n \frac{\cos (2\pi \lambda_k x)}{\lambda_k}\right|$.

Eigenvalues of Fourier Transform on Schwartz Functions

$\sum \limits_{k=1}^{\infty} \frac{1}{k} \cos 2\pi k \theta$ does not converge as $\theta \rightarrow 0?$

Can we determine whether $f\in L^{p}$ or not ; if we know $\hat{f}$

How to construct a continuous function that is (mean) convergent to a given square integrable function

Deflection of String

Gradient of the Fourier transform of a function

Discrete fractional fourier transform matrix

Rectangular Width Fourier Function

How to compute $\int _\mathbb{R}\frac{sin^{2n}t}{t^{2n}}dt$?

How to compute the Fourier transform of $\operatorname{rect}$?

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