- Ph.D. University of Chicago 1984
- S.M. University of Chicago 1980
- B.S. Samford University 1979
Mainly Harmonic Analysis (Maximal functions, Sobolev spaces/inequalities, extremals) Secondly, certain aspects of combinatorics (Marriage theorem, rearrangements of functions) and clustering (eg. classification schemes, pattern recognition). More recently, I've been studying unique continuation, level curves of harmonic functions, and discrete inequalities with L De Carli.