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arXiv · 2603.03029

On signs of coefficients of L-functions

Didier Lesesvre·Ming Ho Ng·Yingnan Wang
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Abstract

We give a general lower bound on the frequency of sign changes in the real coefficients of L-functions of the Selberg class. We in particular recover existing results in the cases of GL(2) and GL(3), and obtain new bounds in the case of GSp(4).

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Didier Lesesvre, Ming Ho Ng, Yingnan Wang. 2026-03-03. On signs of coefficients of L-functions. https://arxiv.org/abs/2603.03029

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