Professor of Mathematics

Director of Graduate Studies

Department of Mathematics

Columbia University

2990 Broadway

New York, NY 10027.

Commutative Algebra

Here are some Preprints

I co-organize the following seminars:

Arithmetic and Automorphic Forms Seminar

Joint Columbia-CUNY-NYU Number Theory Seminar

Past (co-}organized workshops, conferences and seminars:

Workshop: Automorphic Galois Representations, L-functions and Arithmetic

Conference: Selmer Groups, L-functions, and Galois Deformations (UCLA 2008)

Video Seminar Columbia/ University Paris 13

Modular/Geometric Iwasawa Theory and p-adic L-functions

FRG/RTG Workshop on L-functions, Galois Representations and Iwasawa theory, UCLA May 2011

p-adic Modular Forms and Arithmetic, UCLA June 2012

Modular Forms, p-adic L-functions and Selmer groups, Oriahovitza (Bulgaria) July 2013