English

Slab Theorem and Halfspace Theorem for constant mean curvature surfaces in $\mathbb H^2\times\mathbb R$

Differential Geometry 2022-07-28 v2

Abstract

We prove that a properly embedded annular end of a surface in H2×R\mathbb H^2\times\mathbb R with constant mean curvature 0<H120<H\leq \frac{1}{2} can not be contained in any horizontal slab. Moreover, we show that a properly embedded surface with constant mean curvature 0<H120<H\leq \frac{1}{2} contained in H2×[0,+)\mathbb H^2\times[0,+\infty) and with finite topology is necessarily a graph over a simply connected domain of H2\mathbb H^2. For the case H=12H=\frac{1}{2}, the graph is entire.

Keywords

Cite

@article{arxiv.2105.11428,
  title  = {Slab Theorem and Halfspace Theorem for constant mean curvature surfaces in $\mathbb H^2\times\mathbb R$},
  author = {Laurent Hauswirth and Ana Menezes and Magdalena Rodriguez},
  journal= {arXiv preprint arXiv:2105.11428},
  year   = {2022}
}

Comments

Final version. Accepted for publication in Revista Matematica Iberoamericana