I am an Assistant Professor in the Mathematics Department at George Washington University. I received my Ph.D. at MIT in 2012 under the guidance of Alex Postnikov, and worked for several years as a post-doc in the combinatorics group at the School of Mathematics, University of Minnesota, Twin Cities. My Erdős number (see also) is at most 3.

The image at left was taken by Tom Roby at MIT's D.W. Weeks (Women in Math) seminar.

Contact Info

  jblewis if-you're-not-a-computer-you-know-what-goes-here gwu.edu.

  Phillips Hall, Room 707
  801 22nd Street, NW
  Washington, DC 20052 USA

Office phone:
  (202) 994-0334


I'm interested in combinatorics, especially enumerative and algebraic. Much of my recent work involves the combinatorics of permutations, GLn(Fq)-analogues, and Coxeter groups. You can find me on the arXiv or MathSciNet.


In Spring 2018, I am teaching Math 1231 (Calculus 1) and 3632 (Graph Theory). Students should look for all course materials on Blackboard.

Office Hours

My office hours for Spring 2018 are M 10–12 and Tu 3–4.


This year I am co-organizing the GWU combinatorics seminar with Joe Bonin