Remembered for his work in the mathematical sub-fields of representation theory and p-adic analysis, this longtime University of Chicago professor also created both the Young Scholars Program and the Everyday Mathematics curriculum development program.
After graduating from Boston College, he earned a Ph.D. in mathematics from Brandeis University.
His numerous honors include the American Mathematical Society's Distinguished Service Award and the Amoco Foundation's Undergraduate Teaching Award.
His marriage to fellow mathematics professor Judith Sally resulted in sons named David (a business professor), Stephen (an attorney), and Paul (a school superintendent).
He taught at the University of Chicago, where fellow mathematician Paul Cohen received his graduate education.