$L^p$ cohomology and pinching

$L^p$ cohomology and pinching

Mon, 15/11/2010
15:45 		Pierre Pansu (Orsay) Topology Seminar Add to calendar L3
$ L^p $ cohomology and pinching
We prove that no Riemannian manifold quasiisometric to complex hyperbolic plane can have a better curvature pinching. The proof uses cup-products in $ L^p $-cohomology.