Abstract
We show that a heat kernel estimate holds based on a Kato-class condition for the negative part of Ricci curvature. This is a generalization of results based on \(L^p\)-bounds on the Ricci curvature. We also establish bounds on the first Betti number.
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Rose, C. Li–Yau gradient estimate for compact manifolds with negative part of Ricci curvature in the Kato class. Ann Glob Anal Geom 55, 443–449 (2019). https://doi.org/10.1007/s10455-018-9634-0
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DOI: https://doi.org/10.1007/s10455-018-9634-0