International Conference on
Enumerative Combinatorics and Applications
ICECA 2023, September 4-6, 2023.
The Idea of a Grammatical Calculus
Conference on the Occasion of the Retirement of Yeong-Nan Yeh,
June 28, 2021.
Context-free grammars for combinatorial enumeration
22nd International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2010),
San Francisco State University, August, 2010.
Recent developments on log-concavity and q-log-concavity of combinatorial polynomials
AMS Meeting, San Diego, January, 2008.
The q-Zeilberger algorithm and the q-WZ method for infinite series