接下来,通过与(2)相似的计算来检查平均曲率,相对于正常指向附近的共包构边界,通过与(2)的计算进行检查,将证明简化为与球形拓扑处的单个共形边界的情况。We can therefore cut away an asymptotic end of M by introducing a new boundary component { Ω= ϵ } , with ϵ sufficient small so that this new boundary component satisfies, say, H > 0 with respect to the outward normal (thus H < 0 < n − 1 with respect to the inward normal).此边界组件将成为新的,截断,多种多样的边界的一部分,但仍以m表示。
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