Stable minimal hypersurfaces in a Riemannian manifold with pinched negative sectional curvature
arXiv:1106.0693
Abstract
We give an estimate of the first eigenvalue of the Laplace operator on a complete noncompact stable minimal hypersurface in a complete simply connected Riemannian manifold with pinched negative sectional curvature. In the same ambient space, we prove that if a complete minimal hypersurface has sufficiently small total scalar curvature then has only one end. We also obtain a vanishing theorem for harmonic 1-forms on minimal hypersurfaces in a Riemannian manifold with sectional curvature bounded below by a negative constant. Moreover we provide sufficient conditions for a minimal hypersurface in a Riemannian manifold with nonpositive sectional curvature to be stable.
16 pages