My research is in algebraic, enumerative, and topological combinatorics.
- Eulerian Numbers (my book)
- Steinberg tori! (Cool images!)
- The slides from my talk about the Malicious Maitre D', given at Jim Propp's birthday conference in June 2024.
- The slides from my talk about work with Yan Zhuang about zig-zag Eulerian polynomials, delivered at an AMS special session in 2024.
- The slides from my talk about work with Sarah Bockting-Conrad, Yevgenia Kashina, and Bridget Tenner on Sos permutations, delivered at an AMS special session in Hawaii in 2019.
- The slides from my talk about my math research program, delivered at the DePaul College of Science and Health 2018 fall meeting, upon receipt of the mid-career excellence in research award.
- The slides from my talk about work with Joel Lewis, Jon McCammond, and Petra Schwer on reflection length in affine Coxeter groups, given at FPSAC 2018 at Dartmouth.
- The slides from my talk about work with Bridget Tenner and (separately) with Mathieu Guay-Paquet on the depth of an element in a Coxeter group, given at an AMS sectional meeting in 2014.
- The slides from my talk about my work on the shard intersection order, delivered at an AMS sectional meeting in St. Louis in 2013.
- The slides from my talk about work with Marcelo Aguiar on the module of affine descents, delivered at FPSAC 2013 in Paris.
- The slides from my survey talk talk at MathFest 2012 about the Loday-Ronco algebra, intended for a general mathematical audience.
- The slides from my talk about my joint work with Eran Nevo on gamma nonnegativity, delivered in January 2010 at the Joint Math Meetings special session on permutations.
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