Curriculum Vitae
Regular positions held
- Texas A&M University
- Regents Professor, since 2014.
- Presidential Professor for Teaching Excellence, since 2012.
- Professor of Mathematics, since 1992.
- Associate Professor of Mathematics, 1987–1992.
- Assistant Professor of Mathematics, 1984–1987.
- Columbia University
- J. F. Ritt Assistant Professor of Mathematics,
1980–1984.
Visiting positions held
- Mathematical Sciences Research Institute, Berkeley
- University of North Carolina at Chapel Hill
- Visiting Associate Professor of Mathematics, 1989–1990.
- Visiting Lecturer, 1979–1980.