Here are slides for recent talks, in reverse chronological order of delivery. If the date is incomplete, then the slides are not yet available, probably because the talk has not yet been given. Slides for several earlier talks seem no longer to be available. I will be putting up any newer talks as individual blog posts.

Asymptotics of coefficients of multivariate generating functions Workshop in Asymptotic Enumeration, ANU, Canberra, 2007-09-{10-14}.

Polytope computations in social choice theory Auckland Discrete Mathematics and Social Sciences Seminar 2007-04-23.

The diameter of random Cayley graphs 12th AofA workshop Alden Biesen 2006-07-06

Asymptotics of generalized Riordan arrays 11th AofA workshop Barcelona 2005-06-08

Multivariate generating functions II CDMTCS seminar Auckland 2005-04-26

Multivariate generating functions I CDMTCS seminar Auckland 2005-04-12

Sattolo’s algorithm INRIA Rocquencourt 2004-06-28

Towards a theory of multivariate generating functions INRIA Rocquencourt 2004-06-28

Asymptotics of multivariate generating functions Melbourne FPSAC conference 2002-07-

Superalgebras and their uses Missoula 1999-03-09

Primitive ideals in Hopf algebra extensions San Antonio 1999-01-14

Algebras of my acquaintance Auckland 1998-04-29