Question

Functional derivative in Fourier space

score 92 · Answer 1 · 2026-04-12 21:39:44

92

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Functional derivative in Fourier space

Published on 12 Apr 2026 - 21:39

score 50 · Answer 2 · 2026-05-05 22:00:15

50

Views

Meaning of uniform limit to boundary condition

Published on 05 May 2026 - 22:00

score 444 · Answer 3 · 2026-04-11 03:06:49

444

Views

Analytical solution of heat equation – no method gives the correct solution

Published on 11 Apr 2026 - 3:06

score 57 · Answer 4 · 2026-04-13 09:04:30

57

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Problems to find the Fourier series of $ f (x) = x $ at $ 0 \le x \le \pi $.

Published on 13 Apr 2026 - 9:04

score 79 · Answer 5 · 2026-04-12 17:09:22

79

Views

Showing that $\sum_{n=1}^\infty e^{in^2x}/{n^3}$ is absolutely continuous

Published on 12 Apr 2026 - 17:09

score 97 · Answer 6 · 2026-04-14 09:47:45

97

Views

Which Hölder-Spaces on the d-dimensional Torus Ensure Absolute Convergence of Fourier Series?

Published on 14 Apr 2026 - 9:47

score 68 · Answer 7 · 2026-04-12 00:36:03

68

Views

Does the order of sum in fourier series matter?

Published on 12 Apr 2026 - 0:36

score 138 · Answer 8 · 2026-04-11 20:44:05

138

Views

Fourier series of a two-dimensional function periodic in only one direction

Published on 11 Apr 2026 - 20:44

score 131 · Answer 9 · 2026-04-12 05:42:50

131

Views

Function corresponds to $\sum_{n=1}^\infty \frac{(-1)^n}{n^2+\alpha^2}$ using the Fourier expansion

Published on 12 Apr 2026 - 5:42

score 224 · Answer 10 · 2026-05-05 23:00:26

224

Views

Pointwise convergence of Fourier Series to aperiodic function

Published on 05 May 2026 - 23:00

score 23 · Answer 11 · 2026-04-11 06:39:31

23

Views

Fourier series: two different expressions for same period of integration

Published on 11 Apr 2026 - 6:39

score 249 · Answer 12 · 2026-04-10 23:43:35

249

Views

How to calculate the Fourier coefficients accurately using numerical method?

Published on 10 Apr 2026 - 23:43

score 195 · Answer 13 · 2026-05-15 09:42:37

195

Views

Solving Basic Linear Partial Differential Equation

Published on 15 May 2026 - 9:42

score 980 · Answer 14 · 2026-04-24 16:11:31

980

Views

Rigorously, why do the Laplace and Fourier transforms “reveal” the sinusoidal or exponential decomposition at their peaks?

Published on 24 Apr 2026 - 16:11

score 79 · Answer 15 · 2026-04-16 19:08:15

79

Views

Show that an inequality $\|\{a_n\}\|_{L^q}\leq A\|f\|_{L^p}$ with $a_n$ the fourier coefficient,is possible only if $1/p+1/q \leq 1$

Published on 16 Apr 2026 - 19:08

List Question

Functional derivative in Fourier space

Meaning of uniform limit to boundary condition

Analytical solution of heat equation – no method gives the correct solution

Problems to find the Fourier series of $ f (x) = x $ at $ 0 \le x \le \pi $.

Showing that $\sum_{n=1}^\infty e^{in^2x}/{n^3}$ is absolutely continuous

Which Hölder-Spaces on the d-dimensional Torus Ensure Absolute Convergence of Fourier Series?

Does the order of sum in fourier series matter?

Fourier series of a two-dimensional function periodic in only one direction

Function corresponds to $\sum_{n=1}^\infty \frac{(-1)^n}{n^2+\alpha^2}$ using the Fourier expansion

Pointwise convergence of Fourier Series to aperiodic function

Fourier series: two different expressions for same period of integration

How to calculate the Fourier coefficients accurately using numerical method?

Solving Basic Linear Partial Differential Equation

Rigorously, why do the Laplace and Fourier transforms “reveal” the sinusoidal or exponential decomposition at their peaks?

Show that an inequality $\|\{a_n\}\|_{L^q}\leq A\|f\|_{L^p}$ with $a_n$ the fourier coefficient,is possible only if $1/p+1/q \leq 1$

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