The seminar has been running since 1997. The topics of talks have typically been any mixture of algebra with any other field: combinatorics, geometry, topology, physics, etc. Further down this page you will find links to the seminar webpages for previous years. The audience usually consists of 6–12 people, including several graduate students and post-docs. For this reason, speakers are encouraged to devote a portion of their talk to the suggestion of open problems and the directions for research in their area. If you are interested in speaking at the seminar, contact Cesar Ceballos or Nantel Bergeron.
You may also be interested in the Algebraic Combinatorics Seminar at the Fields Institute.
Dates are listed in reverse-chronological order. Unless otherwise indicated, all talks will take place on Monday from 14:00-15:00 in N638 Ross Building (York University).
Date Speaker Title (click titles for abstract) 6 Apr. 2015 Jim Haglund
(U. of Pennsylvania)
26 Jan. 2015 Greg Warrington
(U. of Vermont)
1 Dec. 2014 24 Nov. 2014 Rafael S. Gonzalez
(U. of Kentucky)
17 Nov. 2014 10 Nov. 2014
(U. of Washington)
3 Nov. 2014 Vincent Genest
(U. de Montréal)
27 Oct. 2014 Kevin Dilks
(U. of Minnesota)
20 Oct. 2014 Salvatore Stella
(North Carolina State U.)
13 Oct. 2014
Thanksgiving 6 Oct. 2014 Suho Oh
(U. of Michigan)
29 Sep. 2014 22 Sep. 2014 15 Sep. 2014 Joshua Hallam
(Michigan State U.)
8 Sep. 2013
(Michigan State U.)
Of antipodes and involutions, of cabbages and kings ...If H is a connected, graded Hopf algebra, then Takeuchi's formula can be used to compute its antipode. However, there is usually massive cancellation in the result. We show how sign-reversing involutions can sometimes be used to obtain cancellation-free formulas. We apply this idea to the Hopf algebras of polynomials, graphs, and noncommutative symmetric functions. This is joint work with Carolina Benedetti.
Below you will find links to the seminar webpages for previous years.