%0 Journal Article %T A combinatorial Yamabe flow in three dimensions %A David Glickenstein %J Mathematics %D 2005 %I arXiv %X A combinatorial version of Yamabe flow is presented based on Euclidean triangulations coming from sphere packings. The evolution of curvature is then derived and shown to satisfy a heat equation. The Laplacian in the heat equation is shown to be a geometric analogue of the Laplacian of Riemannian geometry, although the maximum principle need not hold. It is then shown that if the flow is nonsingular, the flow converges to a constant curvature metric. %U http://arxiv.org/abs/math/0506182v1