Seminar series
Date
Wed, 20 Jan 2016
Time
11:00 -
12:30
Location
S2.37
Speaker
Robert Kropholler
Organisation
Oxford
I will go through a proof of Bieberbach's theorems proving that a group acting cocompactly on Euclidean n-space has a subgroup consisting of n independent translations. Time permitting I will also prove that there is a bound on the number of such groups for each dimension n. I will assume very little requiring only a small amount of group theory and linear algebra for the proofs.