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arXiv 0910.4442math.DGmath.AP
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凝聚为紧致曲线网的黎曼流形中的CMC曲面

CMC Surfaces in Riemannian Manifolds Condensing to a Compact Network of Curves

Adrian Butscher

摘要:

三维流形$M$中具有平均曲率$H_j \to \infty$的常平均曲率曲面序列$Σ_j$凝聚成一个由曲线的有限并组成的紧致连通图$Γ$,如果对于每个$j \in \N$,$Σ_j$包含在$Γ$的尺寸为$\mathcal O(1/H_j)$的管状邻域中.本文给出了$Γ$上存在一列紧致嵌入常中曲率曲面凝聚到$Γ$的充分条件。这些条件是:$γ$中的每一条曲线都是涉及$M$沿$γ$的标量曲率的泛函的临界点;并且每一条曲线都必须满足一定的正则性、非退化性和边界条件。当满足这些条件时,表面$Σ_j$可以通过将沿着$Γ$的边缘端对端定位的半径为$2/H_j$的小球粘合在一起来构造。

英文摘要:

A sequence of constant mean curvature surfaces $Σ_j$ with mean curvature $H_j \to \infty$ in a three-dimensional manifold $M$ condenses to a compact and connected graph $Γ$ consisting of a finite union of curves if $Σ_j$ is contained in a tubular neighbourhood of $Γ$ of size $\mathcal O(1/H_j)$ for every $j \in \N$. This paper gives sufficient conditions on $Γ$ for the existence of a sequence of compact, embedded constant mean curvature surfaces condensing to $Γ$. The conditions are: each curve in $γ$ is a critical point of a functional involving the scalar curvature of $M$ along $γ$; and each curve must satisfy certain regularity, non-degeneracy and boundary conditions. When these conditions are satisfied, the surfaces $Σ_j$ can be constructed by gluing together small spheres of radius $2/H_j$ positioned end-to-end along the edges of $Γ$.

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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