Professor für Mathematik am Department of Mathematics und Statistics der University of South Florida, Tampa, Florida (2011); Ph.D. in Mathematik, University of Illinois, Chicago, 1990; M.S. in Mathematik, University of Science and Technology of China (Hefei, Anhui), 1985; B.S. in Mathematik, University of Science and Technology of China (Hefei, Anhui), 1982;