English

Approximating the identity of convolution with random mean and random variance

Probability 2021-01-21 v1 Classical Analysis and ODEs

Abstract

We provide sufficient conditions on the profile φ\varphi, on the sequence of random variables εj>0\varepsilon_j>0 and on the sequence of random vectors yjRny_j\in\mathbb{R}^n such that E(1εjn(ω)zRnφ(xzyj(ω)εj(ω))f(z)dz)f(x)\mathscr{E}\left(\frac{1}{\varepsilon_j^n(\omega)}\int_{z\in\mathbb{R}^n}\varphi\left(\frac{|x-z-y_j(\omega)|}{\varepsilon_j(\omega)}\right)f(z) dz\right)\longrightarrow f(x) when jj\to\infty for almost every xRnx\in\mathbb{R}^n, fLp(Rn)f\in L^p(\mathbb{R}^n), 1p1\leq p\leq\infty, where E\mathscr{E} denotes the expectation, εj\varepsilon_j tends to 0R0\in\mathbb{R} in law and yjy_j tends to 0Rn\mathbf{0}\in\mathbb{R}^n in law.

Keywords

Cite

@article{arxiv.2101.07867,
  title  = {Approximating the identity of convolution with random mean and random variance},
  author = {Hugo Aimar and Ivana Gómez},
  journal= {arXiv preprint arXiv:2101.07867},
  year   = {2021}
}

Comments

12 pages

R2 v1 2026-06-23T22:19:57.845Z