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arXiv 1306.4233math.DGgr-qc
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渐近双曲流形的GBC质量

The GBC mass for asymptotically hyperbolic manifolds

Yuxin Ge, Guofang Wang, Jie Wu

摘要:

本文共分两部分。在第一部分中,我们利用Gauss-Bonnet曲率,这是数量曲率的自然推广,引入了一个高阶质量,Gauss-Bonnet-Chern质量$m^{\H}_k$,渐近双曲流形,并证明它是一个几何不变量。证明了渐近双曲图的正质量定理,并建立了双曲空间$\H^n$中相应的Penrose型不等式与加权Alexandrov-Fenchel不等式之间的关系.在第二部分中,我们建立了$Σ$中的加权Alexandrov-Fenchel不等式。作为应用,对于具有水平型边界$Σ$的渐近双曲图,在优势能量条件$\tilde L_k\ge0$成立的条件下,得到了关于第一部分定义的新质量的最优Penrose型不等式.这两个不等式都是最优的。

英文摘要:

The paper consists of two parts. In the first part, by using the Gauss-Bonnet curvature, which is a natural generalization of the scalar curvature, we introduce a higher order mass, the Gauss-Bonnet-Chern mass $m^{\H}_k$, for asymptotically hyperbolic manifolds and show that it is a geometric invariant. Moreover, we prove a positive mass theorem for this new mass for asymptotically hyperbolic graphs and establish a relationship between the corresponding Penrose type inequality for this mass and weighted Alexandrov-Fenchel inequalities in the hyperbolic space $\H^n$. In the second part, we establish these weighted Alexandrov-Fenchel inequalities in $\H^n$ for any horospherical convex hypersurface $Σ$. As an application, we obtain an optimal Penrose type inequality for the new mass defined in the first part for asymptotically hyperbolic graphs with a horizon type boundary $Σ$, provided that a dominant energy condition $\tilde L_k\ge0$ holds. Both inequalities are optimal.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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