During graduate school at the University of Chicago, I spent some time consulting in industry. I received my PhD in 1966 for a thesis on partial differential equations. My current mathematical interests include partial differential equations and several complex variables.
After two years as an instructor at Brandeis, I came to Rice in 1968. With the exception of a year at the Courant Institute, another at the Institute for Advanced Study, and three years at the National Science Foundation, I have been at Rice since.
Although I retired in June 2004, I retain the rank of Professor Emeritus. I teach one course each spring at Rice. I am also an active member of the Steering Committee for the IAS/Park City Mathematics Institute (PCMI) for whom I edit the Graduate Summer School Lecture Series.
I am also rewriting my textbooks in ordinary differential equaitons, and my computer software for use in differential equations courses.