Education:

v Graduate Center of the City University of New York, USA, Ph.D, May 1990, advisor: Dennis P. Sullivan

v Peking University, China, 1978-1985, BS & MS, advisor: Shantao Liao (廖山涛)

Working Experiences:

v Assistant Professor (1990-1992), State University of New York at Stony Brook, supervisor: John Milnor

v Assistant Professor (1992-1997), City University of New York, Queens College

v Associate Professor (1998-2000), City University of New York (Queens College & Graduate Center)

v Full Professor (2001-Present), City University of New York (Queens College & Graduate Center)

v Distinguished Visiting Professor (2008-Present), Academy of Mathematics and Systems Science, CAS

Other Working Experiences:

v Peking University

v IHES

v UCLA

v MSRI

v MPI

v Cambridge University

v FIM, ETH-Zurich

v AMSS-CAS

v Universite de Picardie-Jules Verne

v Kyoto University

v Fudan University

v Michigan State University

Editorial Board

v Transactions of the American Mathematical Society

v Memoirs of the American Mathematical Society