Index estimates for free boundary minimal hypersurfaces

By L. Ambrozio, Alessandro Carlotto, B. Sharp. 2016

62 citations recorded by the source corpus.

We show that the Morse index of a properly embedded free boundary minimal hypersurface in a strictly mean convex domain of the Euclidean space grows linearly with the dimension of its first relative homology group (which is at least as big as the number of its boundary components, minus one). In ambient dimension three, this implies a lower bound for the index of a free boundary minimal surface which is linear both with respect to the genus and the number of boundary components. Thereby, the compactness theorem by Fraser and Li implies a strong compactness theorem for the space of free boundary minimal surfaces with uniformly bounded Morse index inside a convex domain. Our estimates also imply that the examples constructed, in the unit ball, by Fraser–Schoen and Folha–Pacard–Zolotareva have arbitrarily large index. Extensions of our results to more general settings (including various classes of positively curved Riemannian manifolds and other convexity assumptions) are discussed.

Subfields: Applied Mathematics, Geometry and Topology

View Paper: https://www.semanticscholar.org/paper/7de606dc7cb9c62a5fcb8790c64787fd8bf64197

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In Applied Mathematics

1. Alessandro Carlotto
2. B. Sharp
3. L. Ambrozio
4. Hung Tran
5. M. Li
6. Daniel Ketover
7. Antoine Song
8. F. C. Marques

In Geometry and Topology

1. Alessandro Carlotto
2. B. Sharp
3. L. Ambrozio
4. Hung Tran
5. M. Li
6. Daniel Ketover
7. Antoine Song
8. F. C. Marques

Citations in the corpus

• Index characterization for free boundary minimal surfaces (2016, background): “It is well known ([1], [26], [23]) that the index is equal to the number of negative eigenvalues counting multiplicity for the following system,”
• Compactness analysis for free boundary minimal hypersurfaces (2017, background): “ on the Morse index. For instance, that is certainly the case when (N,g) is a strictly convex domain in the Euclidean space, as a result of the combined application of the effective estimate proven in [4] and the aforementioned theorem by Fraser and Li, see Corollary E in [4] for a precise statement.”