Date(s) : 03/11/2014 iCal
14 h 00 min - 15 h 00 min
One of the ways to construct the representation theory for the infinite symmetric group (as well as for many other groups) is the « semigroup approach » of Grigori Olshanski. The corresponding semigroups are the semigroup of partial bijections and some generalization of Brauer semigroup. We will describe the representations of these semigroups with the help of some natural operations on graded graphs.