Career December2018-Present,ProfessorandDeputyDirectorofIMS,ShanghaiTechUniversity August1997-Present,AssociateProfessor,UniversityofMiami August1991-July1997,AssistantProfessor,UniversityofMiami Education May1991,Ph.D,UniversityofPennsylvania. July1985,M.S.,NanjingUniversity,Nanjing,China July1982,B.S.,JiangsuNormalUniversity,Xuzhou,China