arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.07933math.DGgr-qcmath-phmath.MP
收藏

稳定曲面与自由边界边缘外捕获曲面

Stable Surfaces and Free Boundary Marginally Outer Trapped Surfaces

Aghil Alaee, Martin Lesourd, Shing-Tung Yau

摘要:

我们探索各种概念的稳定性嵌入和沉浸在时空和初始数据集的表面。在这样的表面的兴趣在于他们的潜力,超越变分技术,往往是最小和CMC表面的研究基础。证明了$\mathbf{H}$ -稳定曲面的Christodoulou-Yau估计的两个版本,非紧稳定边缘外捕获曲面(MOTS)的Cohn-Vossen型不等式,以及关于$\mathbf{H}$ -稳定曲面拓扑的一个整体定理.此外,我们给出了有边界的MOTS的毛细稳定性的定义。这种稳定性的概念导致了自由边界稳定MOTS的面积不等式和局部分裂定理。最后,我们建立了自由边界MOTS的指数估计和直径估计。这些结果分别是对自由边界极小曲面的Chen-Fraser-Pang和Carlotto-Franz结果的直接推广。

英文摘要:

We explore various notions of stability for surfaces embedded and immersed in spacetimes and initial data sets. The interest in such surfaces lies in their potential to go beyond the variational techniques which often underlie the study of minimal and CMC surfaces. We prove two versions of Christodoulou-Yau estimate for $\mathbf{H}$-stable surfaces, a Cohn-Vossen type inequality for non-compact stable marginally outer trapped surface (MOTS), and a global theorem on the topology of $\mathbf{H}$-stable surfaces. Moreover, we give a definition of capillary stability for MOTS with boundary. This notion of stability leads to an area inequality and a local splitting theorem for free boundary stable MOTS. Finally, we establish an index estimate and a diameter estimate for free boundary MOTS. These are straightforward generalizations of Chen-Fraser-Pang and Carlotto-Franz results for free boundary minimal surfaces, respectively.

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。

↑