Associate Professor and Director of Graduate Admissions
Department of Mathematics
University of Kansas
405 Snow Hall
1460 Jayhawk Boulevard
Lawrence, KS 66045-7594
Office: I've moved! 618 Snow
Office hours for Summer 2015: By appointment
Phone: (785) 864-7114
Department fax: (785) 864-5255
The best way to contact me: send e-mail to
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My research interests include combinatorics, algebraic geometry, discrete geometry, and computational commutative algebra. I especially like topics in which these fields intersect: configuration varieties (such as picture spaces of graphs, and Grassmannian, flag, and Schubert varieties), simplicial complexes, Coxeter groups, hyperplane arrangements, Stanley-Reisner theory, matroids, Gröbner bases, and lately Hopf algebras. I am always happy when combinatorial techniques can be used to solve problems from other areas of pure or applied mathematics.
I have developed (and continue to revise) a set of lecture notes for my Algebraic Combinatorics course (Math 824) (last updated 8/3/15). They are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.