List questions from fourier-analysis

Published on 15 Apr 2026 - 2:44

117

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Why is this sum of differential operators not elliptic if the highest order of the sum is less than the dimension?

Published on 16 Apr 2026 - 12:35

110

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How to express mathematically the frequency image?

Published on 13 Apr 2026 - 16:32

4.2k

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Computing the Fourier transform of $H_k(x)e^{-x^2/2}$, where $H_k$ is the Hermite polynomial.

Published on 12 Apr 2026 - 8:07

2.7k

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Fourier transform of even real function

Published on 10 Apr 2026 - 7:19

1.8k

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Real Fourier transform

Published on 13 Apr 2026 - 12:22

99

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Where is the choice of orthogonal basis being made in the human auditory system?

Published on 11 Apr 2026 - 17:46

48

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$u(r,\theta)=\sum _{n \in Z} A_n r^{|n|} e^{i n \theta}$, How to prove all partial derivatives exist and are c

Published on 15 Apr 2026 - 8:03

235

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Fourier Transform of a periodic function and LTI transfer functions.

Published on 10 Apr 2026 - 1:45

310

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A better way of finding the Fourier transform of this signal

Published on 12 Apr 2026 - 4:28

1.4k

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Fourier transform of partial derivative identity proof

Published on 12 Apr 2026 - 5:38

248

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Non-uniform Discrete Fourier Transform

Published on 13 Apr 2026 - 22:55

421

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Fourier Series/ fourier transform

Published on 09 Apr 2026 - 8:06

1.1k

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If two functions are equal, are their Fourier transforms the same?

Published on 11 Apr 2026 - 14:32

211

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Question about application of Fourier transform and Poisson summation formula

Published on 09 Apr 2026 - 3:05

List Question

Could someone give me a hint on how to prove this equality?

Why is this sum of differential operators not elliptic if the highest order of the sum is less than the dimension?

How to express mathematically the frequency image?

Computing the Fourier transform of $H_k(x)e^{-x^2/2}$, where $H_k$ is the Hermite polynomial.

Fourier transform of even real function

Real Fourier transform

Where is the choice of orthogonal basis being made in the human auditory system?

$u(r,\theta)=\sum _{n \in Z} A_n r^{|n|} e^{i n \theta}$, How to prove all partial derivatives exist and are c

Fourier Transform of a periodic function and LTI transfer functions.

A better way of finding the Fourier transform of this signal

Fourier transform of partial derivative identity proof

Non-uniform Discrete Fourier Transform

Fourier Series/ fourier transform

If two functions are equal, are their Fourier transforms the same?

Question about application of Fourier transform and Poisson summation formula

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