Sponsored by the Rutgers University Department of Mathematics and the
Center for Discrete Mathematics and Theoretical Computer Science (DIMACS)
Title: Permutation classes with rational generating functions
Speaker: Vince Vatter, Dartmouth College
Date: Thursday, December 10, 2009 5:00pm
Location: Hill Center, Room 705, Rutgers University, Busch Campus, Piscataway, NJ
It is commonly believed that most permutation classes have very complicated, in fact, non-holonomic, generating functions. Yet some permutation classes (those with the simplest structure) possess rational generating functions. I will survey the ongoing (and seemingly quite difficult problem) of characterizing such classes, focusing on what can be done automatically via Maple.