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 -level density for a symplectic family of -functions.
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