Central L-values and periods for GL(2)

Abstract

We give an exposition of central value formulas for twisted L-functions for GL(2) in terms of compact periods, with a focus on explaining an approach via the relative trace formula and joint work of the author with David Whitehouse.

Notes from Automorphic Represenations, Automorphic Forms, L-functions and Related Topics, Jan. 21-25, 2008, RIMS, Kyoto, Conference Proceedings