Commutators in Groups of Piecewise Projective Homeomorpisms
发布时间：2016年06月28日
浏览次数：9167
发布者: He Liu
主讲人： Lawrence Reeves (University of Melbourne)
活动时间： 从 2016-06-30 14:00 到 16:30
场地： 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.
