2009

Winter School on Quantum Chaos, Institut de Mathématiques de Bordeaux, France (January 26-30)

2008

Analytic Theory of GL(3) Automorphic Forms and Applications, American Institute of Mathematics, USA (November 17-21)

Equidistribution on Homogeneous Spaces, The Ohio State University, USA (June 9-13)

2007

CMI Summer School on Homogeneous Flows, Moduli Spaces and Arithmetic, Centro di Ricerca Matematica Ennio De Giorgi, Italy (June 11-July 6); two invited talks given entitled Equidistribution and L-functions

2006

Clay Lectures on Mathematics, University of Cambridge, United Kingdom (November 28-December 1)

Subconvexity Bounds for L-functions, American Institute of Mathematics, USA (October 16-20)

Summer School on Number Theory, Shandong University, China (July 1-31); six invited talks given entitled Subconvexity problems for automorphic L-functions

Additive Combinatorics, Université de Montréal, Canada (April 6-12)

Anatomy of Integers, Université de Montréal, Canada (March 13-17)

L-functions and Related Themes, Université de Montréal, Canada (February 13-18); invited talk given (jointly with Valentin Blomer) entitled Bounds for automorphic L-functions

2005

Gaps Between Primes, American Institute of Mathematics, USA (November 28-December 2)

NATO Summer School on Equidistribution in Number Theory, Université de Montréal, Canada (July 11-22); invited talk given entitled Equidistribution of Heegner points

ArithmeTexas 2005, Texas A&M University, USA (April 2-3); talk given entitled A Burgess-like subconvex bound for twisted L-functions

2004

Theory of the Riemann Zeta and Allied Functions, Mathematisches Forschungsinstitut Oberwolfach, Germany (September 19-25)

Workshop on Spectral Theory and Automorphic Forms, Université de Montréal, Canada (May 3-8); invited talk given entitled The subconvexity problem for Rankin-Selberg L-functions and equidistribution of Heegner points

2002

Summer School on Automorphic Forms and Applications, IAS/Park City Mathematics Institute, USA (June 30-July 20)

Workshop on Zeta-functions and Associated Riemann Hypotheses, Courant Institute of Mathematical Sciences, USA (May 29-June 1)

AMS Spring Eastern Section Meeting, Université de Montréal, Canada (May 3-5); invited special session talk given entitled Twists of Maass forms: a subconvex estimate for L-functions

Arizona Winter School on Periods, Southwestern Center for Arithmetical Algebraic Geometry, USA (March 9-13)

2001

Conference on Automorphic Forms: Concepts, Techniques, Applications and Influence, Institute for Advanced Study, USA (April 4-7)

Arizona Winter School on Modular Forms, Southwestern Center for Arithmetical Algebraic Geometry, USA (March 10-14)

2000

Colloquium on Number Theory - Satellite Meeting of 3rd ECM, University of Debrecen, Hungary (July 3-7); talk given entitled Covering lattice points by subspaces

Workshop on Recent Trends in Analytic Number Theory, Institute for Advanced Study, USA (April 12-15)

1999

Analytic Theory of Automorphic Forms and L-Functions, Institute for Advanced Study, USA (September 1999-April 2000)

Paul Erdős and his Mathematics, The Hungarian Academy of Sciences, Hungary (July 4-11)

AMS Spring Central Section Meeting, University of Illinois at Urbana-Champaign, USA (March 18-21); invited special session talk given entitled On sums of four smooth squares

1997

Illinois Number Theory Conference, University of Illinois at Urbana-Champaign, USA (April 4-5); talk given entitled Waring's problem with small prime factors

4th Midwest Algebraic Number Theory Day, University of Illinois at Urbana-Champaign, USA (March 29)

Elliptic Curves and Applications, Johns Hopkins University, USA (March 20-23)

1996

EMS Summer School on Algebraic Geometry, Eger, Hungary (July 29-August 9)

Satellite Number Theory Conference of 2nd ECM, Eger, Hungary (July 29-August 2)

2nd European Congress of Mathematics, Budapest, Hungary (July 21-27)

1993

7th SEFI Conference, Eindhoven, the Netherlands (European Seminar on Mathematics in Engineering Education, April 14-16)

International Conference on Combinatorics, Keszthely, Hungary (July 18-24); talk given entitled On power sums of complex numbers whose sum is 0