Strong orthogonality between the Möbius function, additive characters, and Fourier coefficients of cusp forms
arXiv:1301.5507 · doi:10.1112/S0010437X13007732
Abstract
Let be the -th nomalized Fourier coefficient of a Hecke--Maass cusp form for and let be a real number. We prove strong oscillations of the argument of as takes consecutive integral values.