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arXiv 1102.2999math.DGgr-qc
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初始数据集中的大型等周曲面

Large isoperimetric surfaces in initial data sets

Michael Eichmair, Jan Metzger

摘要:

研究了渐近平坦黎曼3-流形(M,g)的等周结构,这些流形对质量m>0的Schwarzschild是C^0-渐近的。由于H而提炼一个论点。Bray得到了Schwarzschild中的一个有效体积比较定理。我们用它来表明,等周区域存在于(M,g)的所有足够大的体积,并且它们接近中心坐标球。这意味着G。Huisken和S.- T. Yau和R.因为大的中心坐标球的扰动使包围相同体积的所有竞争表面之间的面积最小化。这证实了H.布雷我们的结果与G. Huisken和S.- T. Yau和J. Qing和G.田在我们的工作中,不需要额外的假设,即曲面是球形的,并且在其结果中远离渐近区域。

英文摘要:

We study the isoperimetric structure of asymptotically flat Riemannian 3-manifolds (M,g) that are C^0-asymptotic to Schwarzschild of mass m>0. Refining an argument due to H. Bray we obtain an effective volume comparison theorem in Schwarzschild. We use it to show that isoperimetric regions exist in (M, g) for all sufficiently large volumes, and that they are close to centered coordinate spheres. This implies that the volume-preserving stable constant mean curvature spheres constructed by G. Huisken and S.-T. Yau as well as R. Ye as perturbations of large centered coordinate spheres minimize area among all competing surfaces that enclose the same volume. This confirms a conjecture of H. Bray. Our results are consistent with the uniqueness results for volume-preserving stable constant mean curvature surfaces in initial data sets obtained by G. Huisken and S.-T. Yau and strengthened by J. Qing and G. Tian. The additional hypotheses that the surfaces be spherical and far out in the asymptotic region in their results are not necessary in our work.

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