21 nov 2019 -- 16:15
Sala Seminari, DM, Pisa
Abstract.
In this talk, we will focus on negatively pinched Hadamard manifolds which are complete, simply connected Riemannian manifolds with sectional curvature ranging between two negative constants. We use the techniques in geometric group theory to characterize geometric finiteness from different perspectives, including the geometry of the quotient manifolds, the limit set of the discrete isometry subgroups and so on.