Example right-aligned image

I have been in the math department at the University of Western Ontario since 2002.  I received my PhD at the University of Michigan in 1999.

I will be on sabbatical from July 2009 -- June 2010: I will be visiting the EPFL (Lausanne) from September through November, and the University of Oregon from January through summer 2010.

Research

My mathematical interests fit roughly under a heading of algebraic combinatorics.  More precisely, this includes arrangements of hyperplanes and subspaces, combinatorial aspects of rational homotopy theory, and "toric topology."

I have some preprints and publications available here.

Teaching

In Winter 2009, I taught

Other Activities

Together with Dan Cohen and Nicole Lemire I organized a Conference in Honour of Peter Orlik in August, 2008 at the Fields Institute.

I am a fan of Macaulay 2 (software for commutative algebra and algebraic geometry). Greg Smith and I have written a package for computation with hyperplane arrangements.  It is included with the standard Macaulay 2 distribution (versions ≥ 1.0): the latest version of the package is also available here for download.