Annales de l’institut Fourier · 2009 · 67 citations · 38 references
Natural SciencesPhysicsThermodynamicsMetric GeometryRiemannian Geometry
We prove two-sided estimates of heat kernels on non-parabolic Riemannian manifolds with ends, assuming that the heat kernel on each end separately satisfies the Li-Yau estimate.
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Hardy-Littlewood theory for semigroups
N. Th. Varopoulos · Journal of Functional Analysis · 1985 · 340 citations