Math Colloquium: The space of all closed subgroups of a Lie group, especially PSL(2,R)
UWM EMS Building, Room E495 3200 N. Cramer Avenue, Milwaukee, WI, United StatesIf G is a Lie group, let Sub(G) be the set of all subgroups H of G that are topologically closed subsets of G. There is a natural topology on Sub(G), called the Chabauty topology. We’ll define the Chabauty topology, …