Seminar series
Date
Wed, 17 Oct 2012
Time
16:00 -
17:00
Location
SR2
Speaker
Elisabeth Fink
Organisation
University of Oxford
I will explain a construction of a group acting on a rooted tree, related to the Grigorchuk group. Those groups have exponential growth, at least under certain circumstances. I will also show how it can be seen that any two elements fulfil a non-trivial relation, implying the absence of non-cyclic free subgroups.