## Talking About Combinatorial Objects Student Seminar: Hopf Structures on Generalized Permutahedra

Seminar | May 4 | 2-3 p.m. | 748 Evans Hall

Andres Rodriguez, SFSU

Department of Mathematics

In the talk we will go over the necessary background to be able to define the Hopf monoid of generalized permutahedra. This includes an introduction to the notion of set species, Hopf monoid in set species, and some intuitive examples. We will discuss how set species are objects of type A by introducing the notion of species relative to hyperplanes, and we will discuss what species” mean in other types.

events@math.berkeley.edu