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arXiv 1907.09396math.DGgr-qc
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几个数量曲率曲积分裂定理

Some scalar curvature warped product splitting theorems

Gregory J. Galloway, Hyun Chul Jang

摘要:

给出了具有数量曲率$S \ge -n(n-1)$(或$S\ge 0$)的黎曼流形$(M^n,g)$的刚性结果,并给出了紧致边界$N$满足一个相关的中曲率不等式的黎曼流形$(M^n,g)$的刚性结果.证明利用的结果边缘外捕获表面适用于适当的初始数据集。其中一个结果涉及到Obata方程的边界流形上的分析。这一结果与黄兰轩和第二作者最近关于零质量渐近局部双曲流形的刚性的工作有关。

英文摘要:

We present several rigidity results for Riemannian manifolds $(M^n,g)$ with scalar curvature $S \ge -n(n-1)$ (or $S\ge 0$), and having compact boundary $N$ satisfying a related mean curvature inequality. The proofs make use of results on marginally outer trapped surfaces applied to appropriate initial data sets. One of the results involves an analysis of Obata's equation on manifolds with boundary. This result is relevant to recent work of Lan-Hsuan Huang and the second author concerning the rigidity of asymptotically locally hyperbolic manifolds with zero mass.

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