Semigroups connected with the infinite symmetric group and their representations

Date(s) : 03/11/2014
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.


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