On the asymptotic behavior of Einstein manifolds with an integral bound on the Weyl curvature

Abstract

In this paper we consider the geometric behavior near infinity of some Einstein manifolds $(X^n,g)$ with Weyl curvature belonging to a certain $L^p$ space. Namely, we show that if $(X^n,g)$, $n\ge 7$, admits an essential set and has its Weyl curvature in $L^p$ for some $1<p<\frac{n-1}{2}$, then $(X^n,g)$ must be asymptotically locally hyperbolic. One interesting application of this theorem is to show a rigidity result for the hyperbolic space under an integral condition for the curvature.

25 pages