· Researcher, Center for Theoretical Foundations of Learning, Inference, Information, Intelligence, Mathematics and Microeconomics (CLIMB) at UC Berkeley2023–
· Class of 1961 Collegium Professor of Mathematics, University of California, Berkeley1989–2021
· Professor Emeritus, University of California, Berkeley1989–2021
· Professor, University of Maryland1980–1989
· Ph.D. in Mathematics, University of California, Los Angeles1975–
· Professor, University of Kentucky1975–1980
· Bachelor's degree, Vanderbilt University1971–