A lower bound for the heat kernel
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Jeff Cheeger; Shing-Tung Yau
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Article
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1981
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John Wiley and Sons
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English
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Institute for Advanced Study ## 0. Introduction In this note we give an estimate from below for the fundamental solution of the heat equation on an open metric ball BR(x), of radius R, in a Riemannian manifold M". We assume that, for all r < R, B,(x) is compact. The estimate is in the form of a co