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arXiv 1108.4231math.DG
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Kahler流形的局部体积比较

Local volume comparison for Kahler manifolds

Gang Liu

摘要:

在具有里奇曲率下界的Kahler流形上,假设度量的实解析性,建立了小球的一个尖锐的相对体积比较定理。所比较的模型空间是复空间型,即具有常全纯截面曲率的Kahler流形。此外,我们给出了一个例子表明,在Kahler流形上,逐点拉普拉斯比较定理不成立时,里奇曲率是有界的从下面。

英文摘要:

On Kahler manifolds with Ricci curvature lower bound, assuming the real analyticity of the metric, we establish a sharp relative volume comparison theorem for small balls. The model spaces being compared to are complex space forms, i.e, Kahler manifolds with constant holomorphic sectional curvature. Moreover, we give an example showing that on Kahler manifolds, the pointwise Laplacian comparison theorem does not hold when the Ricci curvature is bounded from below.

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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