Topology Seminar: Dr. Talia Fernós

The Roller Compactification and CAT(0) Cube Complexes:

Monday, March 7 at 2pm
EMS Building, Room E408

The Roller compactification is a beautiful object that ties together the combinatorial and geometric properties that characterize CAT(0) cube complexes. In this talk, we will discuss this compactification in the context of superrigidity, the fixed point Property (FC), and the abundance of regular elements (i.e. automorphisms that are rank-1 in each irreducible factor). These results are collaborations with Caprace, Chatterji, and Iozzi, as well as, Lécureux, and Mathéus.