Phone: (217) 300-0692
FAX: (217) 333-9576
I work in metric geometry and Alexandrov spaces of curvature bounded either above or below; Riemannian geometry; Lorentz geometry. My current focus is on our book Alexandrov Geometry (see below); and on Alexandrov-meets-Lorentz.
William Karr (Ph.D. 2017)
Chanyoung Jun (Ph.D. 2012)
Jeremy Wong (Ph.D. 2006)
Chaiwat Maneesawarng (Ph.D. 1999)
Anton Petrunin (Ph.D. 1995)
Robert Currier (Ph.D. 1984)
Nadine Menninga (Ph.D. 1984)
William Taber (Ph.D. 1980)
Current PhD Students:
Kuo-Tsai Chen Award for Distinguished Mathematical Research, 2004-2006
Fellow of the American Mathematical Society
Prokasy Award for Distinguished Teaching, 1993
Luckman Undergraduate Distinguished Teaching Award, 1993
Outstanding Teacher of Freshmen, Alpha Lambda Delta, 1986
Selected recent invitations
Here is a 2016 talk on Convex Functions and Comparison Geometry in Spacetimes.
Here are reference board notes for a minicourse in Alexandrov Geometry.
Illinois Geometry Lab undergrad research projects: Fall 2013. Spring 2013.
Here is a picture of our prairie restoration.