Murmurations of Dirichlet characters

Oliver, T., Lee, K.-H. and Pozdnyakov, A. 2024. Murmurations of Dirichlet characters. International Mathematics Research Notices.

TitleMurmurations of Dirichlet characters
TypeJournal article
AuthorsOliver, T., Lee, K.-H. and Pozdnyakov, A.
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 1-level density for a symplectic family of L-functions.

JournalInternational Mathematics Research Notices
ISSN1687-0247
1073-7928
Year2024
PublisherOxford University Press
Accepted author manuscript
File Access Level
Open (open metadata and files)

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