Seminar:
Spring 2008, Fridays, Milner 317, 3:00–3:50 p.m.
(Special Time 4pm Milner 317 on Wednesday!)



April 9

Mitja Mastnak ( University of Waterloo )




On (combinatorial) Hopf algebras extensions 



Abstract: I will describe an extension theory for combinatorial Hopf algebras. As an application I will explicitly describe a nice class of examples obtained as extensions of the Hopf algebra of symmetric functions by itself.





