A note on the fourth moment of Dirichlet L-functions
arXiv:0903.4008 · doi:10.4064/aa141-4-3
Abstract
We prove an asymptotic formula for the fourth power mean of Dirichlet L-functions averaged over primitive characters to modulus q and over t\in [0,T] which is particularly effective when q \ge T. In this range the correct order of magnitude was not previously known.
8 pages