English

Limit theorems for random Dirichlet series

Probability 2022-11-02 v1

Abstract

We prove a functional limit theorem in a space of analytic functions for the random Dirichlet series D(α;z)=n2(logn)α(ηn+iθn)/nzD(\alpha;z)=\sum_{n\geq 2}(\log n)^{\alpha}(\eta_n+{\rm i} \theta_n)/n^z, properly scaled and normalized, where (ηn,θn)nN(\eta_n,\theta_n)_{n\in\mathbb{N}} is a sequence of independent copies of a centered R2\mathbb{R}^2-valued random vector (η,θ)(\eta,\theta) with a finite second moment and α>1/2\alpha>-1/2 is a fixed real parameter. As a consequence, we show that the point processes of complex and real zeros of D(α;z)D(\alpha;z) converge vaguely, thereby obtaining a universality result. In the real case, that is, when P{θ=0}=1\mathbb{P}\{\theta=0\}=1, we also prove a law of the iterated logarithm for D(α;z)D(\alpha;z), properly normalized, as z(1/2)+z\to (1/2)+.

Keywords

Cite

@article{arxiv.2211.00145,
  title  = {Limit theorems for random Dirichlet series},
  author = {Dariusz Buraczewski and Congzao Dong and Alexander Iksanov and Alexander Marynych},
  journal= {arXiv preprint arXiv:2211.00145},
  year   = {2022}
}

Comments

29 pages

R2 v1 2026-06-28T04:53:33.746Z