Large isoperimetric surfaces in initial data sets

Michael Eichmair Departement Mathematik Jan Metzger Universit¨at Potsdam

Differential Geometry mathscidoc:1609.10311

Journal of Differential Geometry, 94, (1), 159-186, 2013
We study the isoperimetric structure of asymptotically flat Riemannian 3-manifolds (M, g) that are C0-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 volumepreserving 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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  author={Michael Eichmair, and Jan Metzger},
  booktitle={Journal of Differential Geometry},
Michael Eichmair, and Jan Metzger. LARGE ISOPERIMETRIC SURFACES IN INITIAL DATA SETS. 2013. Vol. 94. In Journal of Differential Geometry. pp.159-186.
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