Combinatorial Yamabe Flow on Surfaces

Details Combinatorial Yamabe Flow on Surfaces Combinatorial Yamabe Flow on Surfaces

2003-06-10

arxiv.org/abs/math/0306167v1

Mathematics

Geometric Topology

Scientific paper

In this paper we develop an approach to conformal geometry of piecewise flat metrics on manifolds. In particular, we formulate the combinatorial Yamabe problem for piecewise flat metrics. In the case of surfaces, we define the combinatorial Yamabe flow on the space of all piecewise flat metrics associated to a triangulated surface. We show that the flow either develops removable singularities or converges exponentially fast to a constant combinatorial curvature metric. If the singularity develops, we show that the singularity is always removable by a surgery procedure on the triangulation. We conjecture that after finitely many such surgery changes on the triangulation, the flow converges to the constant combinatorial curvature metric as time approaches infinity.

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