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arXiv 1209.4669math.DGmath.AP
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调和函数的里奇曲率与单调性

Ricci curvature and monotonicity for harmonic functions

Tobias Holck Colding, William P. Minicozzi

摘要:

本文将[C]中的单调性公式推广到具有非负里奇曲率的流形上.单调量在分析和几何中起着关键作用;参见,例如,[A],[CM 1]和[GL]的单调性唯一性的应用。在这里的应用之一是,水平集的格林函数的开放流形上的非负里奇曲率是渐近脐。

英文摘要:

In this paper we generalize the monotonicity formulas of [C] for manifolds with nonnegative Ricci curvature. Monotone quantities play a key role in analysis and geometry; see, e.g., [A], [CM1] and [GL] for applications of monotonicity to uniqueness. Among the applications here is that level sets of Green's function on open manifolds with nonnegative Ricci curvature are asymptotically umbilic.

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