h–Positivity and Diagonal Coinvariant Spaces, Special session: Symmetric Functions, Symmetric Group Characters, and Their Generalizations, AMS Section Meeting, Winston-Salem, September 2011.
Flajolet, Power Series and Analytic Combinatorics, Invited Speaker, FPSAC’ 2011, Reykjavik, Iceland, June 2011.
(with N. Borie and N. Thiery), Deformed diagonal harmonic polynomials for complex reflection groups, FPSAC’2011, Reykjavik, Iceland, June 2011.
Diagonal harmonics (coinvariant spaces) of complex reflexion groups in several sets of variables, Combinatorial Algebra meets Algrabric Combinatorics, Eight annual meeting, Lakehead University, Thunder Bay, January 2011.
Combinatoire de Catalan et espaces de polynômes harmoniques diagonaux, Séminaire de combinatoire énumérative et algébrique, Institut Henri-Poincaré, Paris, Decembre 2010.
(with A. Garsia and N. Wallach) Harmonics for deformed Steenrod operators, FPSAC’2010, San Francisco, August 2010.