arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1807.00632math.DGmath.AP
收藏

自由边界极小曲面的起泡分析及几何收敛结果

Bubbling analysis and geometric convergence results for free boundary minimal surfaces

Lucas Ambrozio, Reto Buzano, Alessandro Carlotto, Ben Sharp

摘要:

研究了具有有界指数和体积的自由边界极小超曲面序列在曲率集中点附近的极限行为,给出了详细的爆破分析.由此,我们得到了一个一般的量子化恒等式的全曲率功能,有效的环境尺寸小于8和适用于可能不适当的极限超曲面。在三维中,这个恒等式可以与高斯-邦纳定理相结合,以提供一个约束,该约束与收敛序列中的自由边界极小曲面的拓扑、它们的极限以及作为吹胀模型出现的气泡或半气泡的拓扑有关。我们提出了各种几何应用这些工具,包括一个指数的自由边界极小曲面内的非负数量曲率和严格平均凸边界的3流形的行为的描述。特别是,在紧的,单连通的,严格平均凸区域的情况下,$\mathbb{R}^3$对除圆盘和环外的所有拓扑型都无条件收敛,并对可能的退化进行了分类.

英文摘要:

We investigate the limit behaviour of sequences of free boundary minimal hypersurfaces with bounded index and volume, by presenting a detailed blow-up analysis near the points where curvature concentration occurs. Thereby, we derive a general quantization identity for the total curvature functional, valid in ambient dimension less than eight and applicable to possibly improper limit hypersurfaces. In dimension three, this identity can be combined with the Gauss-Bonnet theorem to provide a constraint relating the topology of the free boundary minimal surfaces in a converging sequence, of their limit, and of the bubbles or half-bubbles that occur as blow-up models. We present various geometric applications of these tools, including a description of the behaviour of index one free boundary minimal surfaces inside a 3-manifold of non-negative scalar curvature and strictly mean convex boundary. In particular, in the case of compact, simply connected, strictly mean convex domains in $\mathbb{R}^3$ unconditional convergence occurs for all topological types except the disk and the annulus, and in those cases the possible degenerations are classified.

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。

↑