This page has been mostly outdated for some time. I am now (2008-2010) at Saint Olaf College. E-mail to my Berkeley address is NOT checked.
All my papers are currently on the ArXiv in almost current versions.
Briefly stated, I am interested in combinatorial objects in commutative algebra and algebraic geometry. I have specifically worked on resolutions of certain modules with links to both the braid arrangement and the Hilbert scheme of points in the plane. I am also working on questions about the geometry of Schubert varieties and some associated combinatorics.