selected talks
Refinements and Symmetries of volumes of flow polytopes, video
Experimental Mathematics Seminar, Rutgers, March 2021, Zoom
Volumes and triangulations of flow polytopes of graphs slides, video
Discrete Math Days of the NorthEast, April 2020, Albany, NY.
Asymptotics of principal evaluation of Schubert polynomials, video
IPAM workshop Asymptotic Algebraic Combinatorics, February 2020, Los Angeles, CA
Asymptotics of the number of standard Young tableaux of skew shape
Banff workshop video, October 2016
Hook formulas for skew shapes slides 1, slides 2
Banff workshop video
AMS sectional meeting Minneapolis, October 2016
The Tesler polytope slides
FPSAC Daejeon, South Korea, July 2015
Volumes of flow polytopes slides
open problem session, Stanley@70, Cambridge MA, June 2014
Combinatorics of diagrams of permutations slides
combinatorial algebra meets algebraic combinatorics, Halifax, January 24-26, 2014
joint math meetings AMS-MAA, contributed session geometric applications to combinatorics and K-theory, January 15-18, 2014
Mathematical congress of the Americas, session algebraic and enumerative combinatorics, Guanajuato, Mexico, August 5-9, 2013
Matrices over finite fields with restricted entries talk notes (pre-seminar), talk notes (made using xournal)
CanaDAM 2013, minisymposia on enumerative combinatorics, St. John's NL, June 10-13, 2013, slides
Combinatorics seminar, LaCIM, Université du Québec a Montréal, November 9, 2012
Combinatorics seminar, University of Washington, Seattle WA, October 3, 2012
Symmetry of trees and of colored factorizations slides
ECCO'12, Bogota, Colombia; June 13, 2012
Flow polytopes and the Kostant partition function for signed graphs slides
FPSAC Nagoya, Japan, August 3, 2012
combinatorics seminar, Dartmouth College, Hanover NH, February 22, 2012
AGC seminar, San Francisco State University January 25, 2012
combinatorics seminar, UC Davis January 25, 2012
combinatorial algebra meets algebraic combinatorics, Montréal, January 20-22, 2012
joint math meetings AMS MAA, session enumerative and algebraic combinatorics, Boston, January 5, 2012
XVIII Colombian congress of mathematics, Bucaramanga, Colombia, July 13, 2011
Bijections and symmetries for factorizations of long cycle and Jackson’s formula slides (updated 03/2014)
Combinatorics seminar, University of Minnesota, Minneapolis MN, April 11, 2014
winter meeting CMS, session on symmetric functions and generalizations, Ottawa, December 6-9, 2013
AMS spring eastern sectional meeting, session on combinatorics and integrability, Chestnut Hill MA, April 6, 2013, slides (conjecture on p. 39 now checked up to n=16)
LIAFA combinatorics seminar, Jussieu Paris France February 16, 2012
combinatorics seminar, MIT, Cambridge MA, March 30, 2011
Matrices with restricted entries and q-analogues of permutations slides (made using ytableau)
FPSAC Reykjavik, Iceland, June 13, 2011
q-analogues of derangements and fixed point free involutions and relations to q-rook numbers slides
combinatorics seminar, Dartmouth College, Hanover NH, February 17, 2011
CAGE seminar, UPenn, Philadelphia PA, February 8, 2011
combinatorics seminar, LIX, Ecole Polytechnique, Palaiseau France, September 29, 2010
The combinatorial nature of the Legendre transform slides
combinatorics seminar, LIX, Ecole Polytechnique, Palaiseau France, June 25, 2008
phd thesis defense
Combinatorics of colored factorizations, flow polytopes, and matrices over finite fields slides
MIT, Cambridge MA, April 23, 2012
postdoc, student seminars
Domino and lozenge tilings notes, slides
UMass Math Club, May 1, 2019
Counting orderings of acyclic graphs and why is π < 2φ? slides
Prof. talks Undergraduate Mathematics Student Association, UCLA, March 8, 2017
Introduction to Flow polytopes notes (in french)
guest lecture Catalan Combinatorics course, François Bergeron, Université du Québec à Montréal, October 28, 2013
The Harer-Zagier formula and rook placements notes (in french)
LaCIM/Cirget postdoc seminar, Université du Québec a Montréal, January 28, 2013
q-analogues of permutations and rook placements slides
Lehigh graduate student math seminar, Lehigh University, Bethlehem PA, November 23, 2010
Bijective enumeration of factorizations in the symmetric group slides
the Simple Person’s Applied Math Seminar (SPAMs), MIT, Cambridge MA, May 9, 2009