On the error term in a mixed moment of L-functions

Abstract

There has recently been some interest in optimizing the error term in the asymptotic for the fourth moment of Dirichlet L-functions and a closely related mixed moment of L-functions involving automorphic L-functions twisted by Dirichlet characters. We obtain an improvement for the error term of the latter.

Mathematika 69 (2023), no. 3, 573--583