English

Index Characterization for Free Boundary Minimal Surfaces

Differential Geometry 2020-06-26 v4

Abstract

In this paper, we compute the Morse index for a free boundary minimal submanifold from data of two simpler problems. The first one is the corresponding problem with fixed boundary condition; and the second is associated with the Dirichlet-to-Neumann map for Jacobi fields. As an application, we show that the Morse index of a free boundary minimal annulus is equal to 4 if and only if it is the critical catenoid.

Keywords

Cite

@article{arxiv.1609.01651,
  title  = {Index Characterization for Free Boundary Minimal Surfaces},
  author = {Hung Tran},
  journal= {arXiv preprint arXiv:1609.01651},
  year   = {2020}
}

Comments

fixed several typos regarding the nullity and others

R2 v1 2026-06-22T15:41:31.561Z