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arXiv 1408.4155math.DG
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发展流形上共轭热核的Harnack估计

Harnack Estimates for Conjugate Heat Kernel on Evolving Manifolds

Xiaodong Cao, Hongxin Guo, Hung Tran

摘要:

本文给出了抽象几何流中共轭热核的Harnack估计。我们的计算包括一个修正项D。当D非负时,我们可以得到一个Harnack不等式。我们的抽象制定提供了一个统一的框架,一些已知的结果,特别是包括相应的结果Ni,佩雷尔曼,和Tran作为特殊情况。并在具有非负截面曲率的Lorentz流形上建立了Ricci-Harmonic流和中曲率流的新结果。

英文摘要:

In this article we derive Harnack estimates for conjugate heat kernel in an abstract geometric flow. Our calculation involves a correction term D. When D is nonnegative, we are able to obtain a Harnack inequality. Our abstract formulation provides a unified framework for some known results, in particular including corresponding results of Ni, Perelman, and Tran as special cases. Moreover it leads to new results in the setting of Ricci-Harmonic flow and mean curvature flow in Lorentzian manifolds with nonnegative sectional 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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