Professor, Mathematics, U.T Austin (and class of '91; Hook 'em horns!)
PMA 9.112 (PMA was once called RLM).
In Fall 2022, I am teaching the graduate prelim course in Algebraic Topology.
Student quote about n!: "You're not allowed to get excited in math, because someone decided numbers get real big when you do that."
Here is my CV and below are my papers. At the bottom of this page there are also some expository notes. Please email me at