Preprints, Letters, Lectures, Notes
Notes with P.Cohen on the trace formula Chapter 6
Notes with P.Cohen on the trace formula Chapter 7
Fall 2006 - Hans Rademacher Lectures in Mathematics
Notes on the Generalized Ramanujan Conjectures
Letter to J. Davis About Reciprocal Geodesics
Notes for Ramanujan Graphs and the Ramanijan Conjectures - Hedrick Lectures 2004
Notes for Baltimore Lectures - January 2003
Fields Institute Lectures - June 2003
Quantum variance for Hecke eigenforms
Comments on Langland's Lecture
Number Variance paper with Xiaoqing Li
Letter to Lagarias on integral Apollonian packings
PIMS 2007 lecture:"Equidistribution and Primes"
Linnik-Selberg Conjecture (joint with J.Tsimerman)
Letter to Mozzochi on winding numbers of closed geodesics