We study the asymptotic cones of the universal covering spaces of closed 4-dimensional nonpositively curved real analytic manifolds. We show that the existence of the nonstandard components in the Tits boundary, discovered by Christoph Hummel and Victor Schroeder, depends on the quasi-isometry type of the fundamental group.
Geometry-Topology Reading Seminar
Tuesday, November 30, 2004 - 10:45am
Mohamad Hindawi
University of Pennsylvania