Question

Fourier transform in Schwartz space

score 143 · Answer 1 · 2026-04-12 13:36:16

143

Views

Fourier transform in Schwartz space

Published on 12 Apr 2026 - 13:36

score 207 · Answer 2 · 2026-04-12 10:51:54

207

Views

For the Fourier transform, when simplifying an integral's bounds by ignoring where half of it equals 0, why don't we divide by two?

Published on 12 Apr 2026 - 10:51

score 37 · Answer 3 · 2026-04-16 11:43:11

37

Views

Partial sums of $L_p$ functions are $L_p$ functions

Published on 16 Apr 2026 - 11:43

score 100 · Answer 4 · 2026-04-16 01:51:45

100

Views

How can I smoothly transform one periodic function into another if the period time is allowed to differ?

Published on 16 Apr 2026 - 1:51

score 630 · Answer 5 · 2026-04-14 10:06:15

630

Views

Laplace equation for circular symmetry: given a potential $\phi (z,0)$, how to find $\phi (0,r)$?

Published on 14 Apr 2026 - 10:06

score 64 · Answer 6 · 2026-04-15 09:55:27

64

Views

Evaluate $\int_{-\infty}^\infty \frac{1}{x^4 + 7x^2 + 6} dx$ using Fourier analysis

Published on 15 Apr 2026 - 9:55

score 184 · Answer 7 · 2026-04-16 12:24:58

184

Views

Compute the Discrete Fourier Transform (DFT) of the 4-point signal $f = [3, 2, 5, 1]$.

Published on 16 Apr 2026 - 12:24

score 154 · Answer 8 · 2026-04-16 02:34:59

154

Views

Take $f$ in $L^1(\mathbb{R})$, define $g(x) := f (ax + b)$. Compute the Fourier transform of $g$ in terms of that of $f$.

Published on 16 Apr 2026 - 2:34

score 54 · Answer 9 · 2026-04-19 02:28:10

54

Views

Fourier Transform of $S_\epsilon(x)=e^{−2π\epsilon|x|}\operatorname{sgn} x$

Published on 19 Apr 2026 - 2:28

score 108 · Answer 10 · 2026-04-12 15:14:30

108

Views

Is there a special term for the two variables in a Fourier transform?

Published on 12 Apr 2026 - 15:14

score 205 · Answer 11 · 2026-04-15 07:01:05

205

Views

How to find The Fourier series of $f(x,y)=x|y|+\cos^2(x+2y)$

Published on 15 Apr 2026 - 7:01

score 73 · Answer 12 · 2026-04-13 12:16:41

73

Views

Is there any article/paper that describe the way to derive FFT algorithm?

Published on 13 Apr 2026 - 12:16

score 76 · Answer 13 · 2026-04-19 00:51:24

76

Views

Fourier Transform of an exponential function with sine modulation

Published on 19 Apr 2026 - 0:51

score 213 · Answer 14 · 2026-04-11 01:35:54

213

Views

Can one represent Dirac's delta distribution as an integral over $\mathbb{R}$ other than the Fourier transform of 1?

Published on 11 Apr 2026 - 1:35

score 44 · Answer 15 · 2026-03-26 06:22:32

44

Views

Steps in the general computation of the DTFT of a complex signal

Published on 26 Mar 2026 - 6:22

List Question

Fourier transform in Schwartz space

For the Fourier transform, when simplifying an integral's bounds by ignoring where half of it equals 0, why don't we divide by two?

Partial sums of $L_p$ functions are $L_p$ functions

How can I smoothly transform one periodic function into another if the period time is allowed to differ?

Laplace equation for circular symmetry: given a potential $\phi (z,0)$, how to find $\phi (0,r)$?

Evaluate $\int_{-\infty}^\infty \frac{1}{x^4 + 7x^2 + 6} dx$ using Fourier analysis

Compute the Discrete Fourier Transform (DFT) of the 4-point signal $f = [3, 2, 5, 1]$.

Take $f$ in $L^1(\mathbb{R})$, define $g(x) := f (ax + b)$. Compute the Fourier transform of $g$ in terms of that of $f$.

Fourier Transform of $S_\epsilon(x)=e^{−2π\epsilon|x|}\operatorname{sgn} x$

Is there a special term for the two variables in a Fourier transform?

How to find The Fourier series of $f(x,y)=x|y|+\cos^2(x+2y)$

Is there any article/paper that describe the way to derive FFT algorithm?

Fourier Transform of an exponential function with sine modulation

Can one represent Dirac's delta distribution as an integral over $\mathbb{R}$ other than the Fourier transform of 1?

Steps in the general computation of the DTFT of a complex signal

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