Conferences organized/co-organized

• Rings, Algebras, and Varieties in Combinatorics, Special session at the Southeastern Section Meeting of the American Mathematical Society, April 4-5, 2009, North Carolina State University, Raleigh.
• Combinatorial Representation Theory, Topological Combinatorics and Interactions Between Them, Special session at the Central Section Meeting of the American Mathematical Society, April 5-6, 2008, Indiana University, Bloomington.
• One-day meeting in the series Discrete Mathematics in the Northeast, University at Albany, March 18, 2006.
• Special session on algebraic combinatorics at the Eastern Section Meeting of the AMS, Bard College, October 8-9, 2005.