- "(Equivariant) Chern-Schwartz-MacPherson classes", AMS sectional in Rutgers, Special session in Modern Schubert Calculus, New Brunswick NJ, November 2015 (.pdf) .

- "Curve neighborhoods of Schubert varieties", NC State Algebra seminar, Raleigh NC, February 2012 (.pdf) .

- "Curves and positroids in the Grassmannian", SIAM minisymposium in Discrete mathematics, Austin TX, June 2010 (.pdf)>.

- "Chern-Schwartz-MacPherson classes for Schubert cells in the Grassmannian", AMS meeting, University of Connecticut, Storrs, Nov. 2006 (.pdf) .

- "Factorial Schur functions represent the equivariant quantum Schubert classes", AMS meeting, University of California at Santa Barbara, Santa Barbara, April 2005 (.pdf) .

- "Equivariant Quantum Schubert Calculus", Combinatorics seminar, University of Michigan, Nov. 2004 (.pdf) .