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arXiv 0911.4883math.DGmath.AP
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稳定余维1积分变元的一般正则性理论

A general regularity theory for stable codimension 1 integral varifolds

Neshan Wickramasekera

摘要:

给出了光滑黎曼流形上稳定余维1积分变倍对应于远离一般不可避免奇点的嵌入光滑超曲面的一个充要几何结构条件;当满足该条件时,如果变倍的维数为6或更小,则奇异集为空,如果维度为7,则离散;如果维度为8或更大,则Hausdorff余维度至少为7。这些结论不需要关于奇异集的初始小性假设。这项工作特别是解决了长期存在的问题,左开放的肖恩-西蒙正则理论,以最弱的大小假设的奇异集保证有效性的上述结论。给出了平稳余维为1的积分变分的最优强最大值原理。

英文摘要:

We give a necessary and sufficient geometric structural condition for a stable codimension 1 integral varifold on a smooth Riemannian manifold to correspond to an embedded smooth hypersurface away from a small set of generally unavoidable singularities; when this condition is satisfied, the singular set is empty if the dimension of the varifold is 6 or smaller, discrete if the dimension is 7 and has Hausdorff codimension at least 7 if the dimension is 8 or larger. No initial smallness assumption on the singular set is necessary for these conclusions. The work in particular settles the long standing question, left open by the Schoen-Simon Regularity Theory, as to which weakest size hypothesis on the singular set guarantees the validity of the above conclusions. An optimal strong maximum principle for stationary codimension 1 integral varifolds follows.

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