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Paper detail

Harnack Estimates for Conjugate Heat Kernel on Evolving Manifolds

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.

preprint2014arXivOpen access
Xiaodong CaoHongxin GuoHung Tran
math.DG
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Xiaodong CaoHongxin GuoHung Tran

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