Half-space theorems and the embedded Calabi-Yau problem in Lie groups

Details Half-space theorems and the embedded Calabi-Yau problem in Lie groups Half-space theorems and the embedded Calabi-Yau problem in Lie groups

2010-12-09

arxiv.org/abs/1012.1986v1

Mathematics

Differential Geometry

17 pages

Scientific paper

We study the embedded Calabi-Yau problem for complete embedded constant mean curvature surfaces of finite topology or of positive injectivity radius in a simply-connected three-dimensional Lie group X endowed with a left-invariant Riemannian metric. We first prove a half-space theorem for constant mean curvature surfaces. This half-space theorem applies to certain properly immersed constant mean curvature surfaces of X contained in the complements of normal R^2 subgroups F of X. In the case X is a unimodular Lie group, our results imply that every minimal surface in X-F that is properly immersed in X is a left translate of F and that every complete embedded minimal surface of finite topology or of positive injectivity radius in X-F is also a left translate of F.

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