English

Inverse mean curvature flow in quaternionic hyperbolic space

Differential Geometry 2017-10-20 v2

Abstract

In this paper we complete the study started in [Pi2] of evolution by inverse mean curvature flow of star-shaped hypersurface in non-compact rank one symmetric spaces. We consider the evolution by inverse mean curvature flow of a closed, mean convex and star-shaped hypersurface in the quaternionic hyperbolic space. We prove that the flow is defined for any positive time, the evolving hypersurface stays star-shaped and mean convex. Moreover the induced metric converges, after rescaling, to a conformal multiple of the standard sub-Riemannian metric on the sphere defined on a codimension 3 distribution. Finally we show that there exists a family of examples such that the qc-scalar curvature of this sub-Riemannian limit is not constant.

Keywords

Cite

@article{arxiv.1704.05227,
  title  = {Inverse mean curvature flow in quaternionic hyperbolic space},
  author = {Giuseppe Pipoli},
  journal= {arXiv preprint arXiv:1704.05227},
  year   = {2017}
}

Comments

20 pages. arXiv admin note: substantial text overlap with arXiv:1610.01886

R2 v1 2026-06-22T19:19:47.189Z