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arXiv math/0010008math.DG
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Kaehler-Einstein曲面上的里奇流

Ricci flow on Kaehler-Einstein surfaces

Xiuxiong Chen, Gang Tian

摘要:

本文在Kaehler流形上构造了一组新的里奇曲率泛函,它们在Kaehler Einstein流形上的全纯变换下不变,在Kaehler里奇流下本质减少.此外,如果初始度量具有非负的对分曲率,利用田氏不等式,我们可以证明每一个泛函沿流具有一致的下界,从而给出了一组曲率的积分估计.利用这组积分估计,我们能够证明以下定理:设M是具有正数量曲率的Kaehler-Einstein曲面。如果初始度量具有非负的截面曲率,且在某处为正,则Kaehler-里奇流指数快速收敛到具有常数对分曲率的Kaehler-Einstein度量.

英文摘要:

In this paper, we construct a set of new functionals of Ricci curvature on any Kaehler manifolds which are invariant under holomorphic transfermations in Kaehler Einstein manifolds and essentially decreasing under the Kaehler Ricci flow. Moreover, if the initial metric has non-negative bisectional curvature, using Tian's inequality, we can prove that each of the functionals has uniform lower bound along the flow which gives a set of integral estimates on curvature. Using this set of integral estimates, we are able to show the following theorem: Let M be a Kaehler-Einstein surface with positive scalar curvature. If the initial metric has nonnegative sectional curvature and positive somewhere, then the Kaehler-Ricci flow converges exponentially fast to a Kaehler-Einstein metric with constant bisectional curvature.

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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