Index and topology of minimal hypersurfaces in R^n
arXiv:1605.09693
Abstract
In this paper, we consider immersed two-sided minimal hypersurfaces in with finite total curvature. We prove that the sum of the Morse index and the nullity of the Jacobi operator is bounded from below by a linear function of the number of ends and the first Betti number of the hypersurface. When , we are able to drop the nullity term by a careful study for the rigidity case. Our result is the first effective generalization of Li-Wang. Using our index estimates and ideas from the recent work of Chodosh-Ketover-Maximo, we prove compactness and finiteness results of minimal hypersurfaces in with finite index.
Various typos corrected, appendix added. Accepted by Calculus of Variation and PDE