English

Murmurations of Dirichlet characters

Number Theory 2025-01-14 v4

Abstract

We calculate murmuration densities for two families of Dirichlet characters. The first family contains complex Dirichlet characters normalized by their Gauss sums. Integrating the first density over a geometric interval yields a murmuration function compatible with experimental observations. The second family contains real Dirichlet characters weighted by a smooth function with compact support. We show that the second density exhibits a universality property analogous to Zubrilina's density for holomorphic newforms, and it interpolates the phase transition in the the 11-level density for a symplectic family of LL-functions.

Keywords

Cite

@article{arxiv.2307.00256,
  title  = {Murmurations of Dirichlet characters},
  author = {Kyu-Hwan Lee and Thomas Oliver and Alexey Pozdnyakov},
  journal= {arXiv preprint arXiv:2307.00256},
  year   = {2025}
}

Comments

25 pages, 9 figures. Significant updates since first upload

R2 v1 2026-06-28T11:19:36.494Z