Commutators in Groups of Piecewise Projective Homeomorpisms
Time: 2016-06-28
Published By: He Liu
Speaker(s): Lawrence Reeves (University of Melbourne)
Time: 14:00-16:30 June 30, 2016
Venue: Quanzhai Classroom 29, BICMR
Abstract: The Lodha-Moore groups are
finitely presented counterexamples to the von Neumann-Day conjecture.
They appear as subgroups of a group of piecewise projective maps constructed
by Monod. We study their commutators and
second commutators, showing some of them are simple.
This is joint work with Jose Burillo and Yash Lodha.
