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- Title
Capillary surfaces: Stability, index and curvature estimates.
- Authors
Hong, Han; Saturnino, Artur B.
- Abstract
In this paper, we investigate the connection between the index and the geometry and topology of capillary surfaces. We prove an index estimate for compact capillary surfaces immersed in general 3-manifolds with boundary. We also study noncompact capillary surfaces with finite index and show that, under suitable curvature assumptions, such surface is conformally equivalent to a compact Riemann surface with boundary, punctured at finitely many points. We then prove that a weakly stable capillary surface immersed in a half-space of R 3 which is minimal or has a contact angle less than or equal to π / 2 must be a half-plane. Using this uniqueness result, we obtain curvature estimates for strongly stable capillary surfaces immersed in a 3-manifold with bounded geometry.
- Subjects
SURFACE stability; MINIMAL surfaces; RIEMANN surfaces; CAPILLARIES; CURVATURE; CONTACT angle
- Publication
Journal für die Reine und Angewandte Mathematik, 2023, Vol 2023, Issue 803, p233
- ISSN
0075-4102
- Publication type
Article
- DOI
10.1515/crelle-2023-0050