The catenoid estimate and its geometric applications
Differential Geometry
2016-01-19 v1 Analysis of PDEs
Geometric Topology
Abstract
We prove a sharp area estimate for catenoids that allows us to rule out the phenomenon of multiplicity in min-max theory in several settings. We apply it to prove that i) the width of a three-manifold with positive Ricci curvature is realized by an orientable minimal surface ii) minimal genus Heegaard surfaces in such manifolds can be isotoped to be minimal and iii) the "doublings" of the Clifford torus by Kapouleas-Yang can be constructed variationally by an equivariant min-max procedure. In higher dimensions we also prove that the width of manifolds with positive Ricci curvature is achieved by an index 1 orientable minimal hypersurface.
Keywords
Cite
@article{arxiv.1601.04514,
title = {The catenoid estimate and its geometric applications},
author = {Daniel Ketover and Fernando C. Marques and André Neves},
journal= {arXiv preprint arXiv:1601.04514},
year = {2016}
}