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arXiv 0907.2444math.DGmath-phmath.MP
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具有正数量曲率的变形三维流形

Deforming three-manifolds with positive scalar curvature

Fernando Coda Marques

摘要:

本文证明了可定向紧致3-流形的具有正数量曲率的度量的模空间是路连通的。证明使用里奇流与手术,保形方法,和Gromov和劳森的连接和建设。佩雷尔曼的工作对汉密尔顿的里奇流是根本性的。作为应用之一,我们证明了$\mathbb{R}^3$上真空Einstein约束方程的无迹渐近平坦解空间的路径连通性。

英文摘要:

In this paper we prove that the moduli space of metrics with positive scalar curvature of an orientable compact 3-manifold is path-connected. The proof uses the Ricci flow with surgery, the conformal method, and the connected sum construction of Gromov and Lawson. The work of Perelman on Hamilton's Ricci flow is fundamental. As one of the applications we prove the path-connectedness of the space of trace-free asymptotically flat solutions to the vacuum Einstein constraint equations on $\mathbb{R}^3$.

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