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arXiv 1405.0640math.DGgr-qc
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欧几里得空间图超曲面正质量定理的稳定性

Stability of the positive mass theorem for graphical hypersurfaces of Euclidean space

Lan-Hsuan Huang, Dan A. Lee

摘要:

正质量定理的刚性表明,唯一具有非负数量曲率和零质量的完备渐近平坦流形是欧几里得空间。我们证明了一个相应的稳定性定理的空间,可以实现为图形超曲面在$\mathbb{R}^{n+1}$。具体来说,对于非负数量曲率的渐近平坦图形超曲面$M^n\subset \mathbb{R}^{n+1}$(满足某些技术条件),存在水平超平面$Π\subset \mathbb{R}^{n+1}$,使得在半径为$ρ$的任何球中,$M$和$Π$之间的平坦距离可以纯粹根据$n$、$ρ$和$M$的质量来界定。特别地,这意味着如果这样的图的序列的质量接近零,则序列弱收敛(在电流的意义上,在适当的垂直归一化之后)到$\mathbb{R}^{n+1}$中的平坦平面。这一结果推广了第二作者和C. Sormani和提供了一些证据的猜想说。

英文摘要:

The rigidity of the positive mass theorem states that the only complete asymptotically flat manifold of nonnegative scalar curvature and zero mass is Euclidean space. We prove a corresponding stability theorem for spaces that can be realized as graphical hypersurfaces in $\mathbb{R}^{n+1}$. Specifically, for an asymptotically flat graphical hypersurface $M^n\subset \mathbb{R}^{n+1}$ of nonnegative scalar curvature (satisfying certain technical conditions), there is a horizontal hyperplane $Π\subset \mathbb{R}^{n+1}$ such that the flat distance between $M$ and $Π$ in any ball of radius $ρ$ can be bounded purely in terms of $n$, $ρ$, and the mass of $M$. In particular, this means that if the masses of a sequence of such graphs approach zero, then the sequence weakly converges (in the sense of currents, after a suitable vertical normalization) to a flat plane in $\mathbb{R}^{n+1}$. This result generalizes some of the earlier findings of the second author and C. Sormani and provides some evidence for a conjecture stated there.

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