I'm an associate professor and Canada Research Chair in Combinatorics in Quantum Field Theory in the Combinatorics and Optimization department in the Faculty of Mathematics at the University of Waterloo. Find my contact information here. I was previously at Simon Fraser University.

I work in combinatorics and quantum field theory. I'm often thinking about the connection between Feynman graphs and multiple zeta values, as well as the recursive structure of quantum field theory and what we can learn from it. Sometimes this leads afield, recently to algebraic geometry and to differential equations. I also play with more purely combinatorial ideas like partitions and families of trees. I'm interested in anything fun.