Question

Studying the off-diagonal case of this operator $f \mapsto \int_{B(0,1)} f(x-y)dy $

score 67 · Answer 1 · 2026-04-16 02:29:46

67

Views

Studying the off-diagonal case of this operator $f \mapsto \int_{B(0,1)} f(x-y)dy $

Published on 16 Apr 2026 - 2:29

score 110 · Answer 2 · 2026-04-11 11:34:55

110

Views

Convolution of a Schwartz function with $2\operatorname{sinc}(tx)$

Published on 11 Apr 2026 - 11:34

score 82 · Answer 3 · 2026-04-15 06:03:44

82

Views

Show that $\sum\limits_{n=-\infty}^{\infty}\delta^{(|n|)}(x-n)$ diverges in S'

Published on 15 Apr 2026 - 6:03

score 376 · Answer 4 · 2026-04-15 09:31:46

376

Views

Convolution of an approximate identity with a Schwartz function.

Published on 15 Apr 2026 - 9:31

score 66 · Answer 5 · 2026-04-14 02:25:09

66

Views

(Prove or Disprove) A sequence of integral kernels (from quantum mechanics) approaches to delta function (in the distribution sense)?

Published on 14 Apr 2026 - 2:25

score 334 · Answer 6 · 2026-03-26 00:52:54

334

Views

Question about estimate in proof that $C_c^{\infty}$ is dense in Schwartz space.

Published on 26 Mar 2026 - 0:52

score 87 · Answer 7 · 2026-04-08 20:51:55

87

Views

Operation between Fourier transform and convolution of locally integrable function

Published on 08 Apr 2026 - 20:51

score 49 · Answer 8 · 2026-05-10 19:45:18

49

Views

Reference request on the Schwartz class on integers

Published on 10 May 2026 - 19:45

score 211 · Answer 9 · 2026-04-17 04:13:45

211

Views

Justify the idea of the Fourier transform of a tempered distribution

Published on 17 Apr 2026 - 4:13

score 389 · Answer 10 · 2026-04-11 22:40:20

389

Views

Schwartz function exponential decay

Published on 11 Apr 2026 - 22:40

score 38 · Answer 11 · 2026-04-14 00:23:17

38

Views

Proof of an inequality involving $Q\in H^{1}(\mathbb{R}^d).$

Published on 14 Apr 2026 - 0:23

score 110 · Answer 12 · 2026-04-16 06:00:40

110

Views

Schwarz function if $|f(x)|\leq\frac{C}{(1+|x|^2)^N}$ for all $x$?

Published on 16 Apr 2026 - 6:00

score 870 · Answer 13 · 2026-04-11 21:32:56

870

Views

Exercise $2.3.2$ of Grafakos, Classical Fourier Analysis.

Published on 11 Apr 2026 - 21:32

score 913 · Answer 14 · 2026-04-13 02:27:36

913

Views

Weak convergence in the space of tempered distributions and weighted Sobolev spaces

Published on 13 Apr 2026 - 2:27

score 52 · Answer 15 · 2026-04-17 12:32:33

52

Views

Fourier transform of delta distribution satisfies $ \hat\delta_{x-x_0} = \hat\delta_{x_0} $

Published on 17 Apr 2026 - 12:32

List Question

Studying the off-diagonal case of this operator $f \mapsto \int_{B(0,1)} f(x-y)dy $

Convolution of a Schwartz function with $2\operatorname{sinc}(tx)$

Show that $\sum\limits_{n=-\infty}^{\infty}\delta^{(|n|)}(x-n)$ diverges in S'

Convolution of an approximate identity with a Schwartz function.

(Prove or Disprove) A sequence of integral kernels (from quantum mechanics) approaches to delta function (in the distribution sense)?

Question about estimate in proof that $C_c^{\infty}$ is dense in Schwartz space.

Operation between Fourier transform and convolution of locally integrable function

Reference request on the Schwartz class on integers

Justify the idea of the Fourier transform of a tempered distribution

Schwartz function exponential decay

Proof of an inequality involving $Q\in H^{1}(\mathbb{R}^d).$

Schwarz function if $|f(x)|\leq\frac{C}{(1+|x|^2)^N}$ for all $x$?

Exercise $2.3.2$ of Grafakos, Classical Fourier Analysis.

Weak convergence in the space of tempered distributions and weighted Sobolev spaces

Fourier transform of delta distribution satisfies $ \hat\delta_{x-x_0} = \hat\delta_{x_0} $

Trending Questions

Popular # Hahtags

Popular Questions