List questions from fourier-transform

Published on 26 Mar 2026 - 1:07

159

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There is no function in $L^1$ whose Fourier transform is 1/log(x)

Published on 23 Apr 2019 - 22:19

187

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Application of the operator $\exp\left( \alpha \frac{\partial^2}{\partial q^2}\right)$

Published on 27 Mar 2026 - 15:17

104

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Where is the usefulness of Fourier Transform I was promised?

Published on 25 Mar 2026 - 19:04

441

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Hadamard transforms seen as rotations in higher dimensions

Published on 25 Mar 2026 - 17:36

279

Views

Discretising the Fourier Integral gives a high condition number

Published on 25 Mar 2026 - 7:48

989

Views

Inverse Fourier transform of $F(k) = 1/(k^2+a^2), a>0$

Published on 27 Mar 2026 - 12:07

97

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Why is the denominator and numerator of Fourier coefficient (in Fourier series(exponential) expansion) have a conjugate of the exponential set?

Published on 29 Mar 2026 - 7:40

5.7k

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Finding the Fourier transform of shifted rect function

Published on 26 Mar 2026 - 6:25

19

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On a simple discrete Fourier transform

Published on 29 Mar 2026 - 10:59

119

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Proving $\mathcal{F}\left(\frac{d^n}{dx^n} f(x)\right)=(ik)^n\mathcal{F}(f(x))$.

Published on 28 Apr 2019 - 1:32

813

Views

Find the fourier transform of $e^{-ax^2}\cos(bx)$

Published on 29 Mar 2026 - 11:07

1.7k

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Graph Fourier Transform - Intuition of Eigenvalues of the Laplacian

Published on 25 Mar 2026 - 3:24

34

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Sketch Fourier Transform Analysis Equation

Published on 30 Apr 2019 - 20:41

210

Views

A question on discrete Fourier transform of some function

Published on 25 Mar 2026 - 23:53

List Question

Fourier Transform for heat equation on a half-plane

There is no function in $L^1$ whose Fourier transform is 1/log(x)

Application of the operator $\exp\left( \alpha \frac{\partial^2}{\partial q^2}\right)$

Where is the usefulness of Fourier Transform I was promised?

Hadamard transforms seen as rotations in higher dimensions

Discretising the Fourier Integral gives a high condition number

Inverse Fourier transform of $F(k) = 1/(k^2+a^2), a>0$

Why is the denominator and numerator of Fourier coefficient (in Fourier series(exponential) expansion) have a conjugate of the exponential set?

Finding the Fourier transform of shifted rect function

On a simple discrete Fourier transform

Proving $\mathcal{F}\left(\frac{d^n}{dx^n} f(x)\right)=(ik)^n\mathcal{F}(f(x))$.

Find the fourier transform of $e^{-ax^2}\cos(bx)$

Graph Fourier Transform - Intuition of Eigenvalues of the Laplacian

Sketch Fourier Transform Analysis Equation

A question on discrete Fourier transform of some function

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