Karen received a B.Math. in Pure Mathematics from the University of Waterloo in 2003, and was the recipient of a Governor General Silver Medal. She completed her Ph.D. in mathematics from Boston University in 2008; her thesis was on Growth Estimates for Dyson-Schwinger Equations. In 2009, she began a professorship in the Department of Mathematics at Simon Fraser University.
Karen's research interests are in combinatorics and quantum field theory. The primary objectives of her research are a mathematical understanding of the Dyson-Schwinger quantum equations of motion, and of Feynman integrals. Her work draws upon the interplay between algebraic combinatorics, graph theory, algebraic geometry, and mathematical physics.