A combinatorial curvature flow for compact 3-manifolds with boundary

Details A combinatorial curvature flow for compact 3-manifolds with boundary A combinatorial curvature flow for compact 3-manifolds with boundary

2004-05-14

arxiv.org/abs/math/0405295v2

electronic research announcements, AMS, Volume 11, Pages 12--20 (January 28, 2005)

Mathematics

Geometric Topology

6 pages, 1 firure

Scientific paper

We introduce a combinatorial curvature flow for PL metrics on compact triangulated 3-manifolds with boundary consisting of surfaces of negative Euler characteristic. The flow tends to find the complete hyperbolic metric with totally geodesic boundary on a manifold. Some of the basic properties of the combinatorial flow are established. The most important ones is that the evolution of the PL curvature satisfies a combinatorial heat equation. It implies that the total curvature decreases along the flow. The local convergence of the flow to the hyperbolic metric is also established if the triangulation is isotopic to a totally geodesic triangulation.

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