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A note on isoperimetric inequalities of Gromov hyperbolic manifolds and graphs (2004.01755v1)
Published 26 Mar 2020 in math.DG
Abstract: In this paper we study the relationship of hyperbolicity and (Cheeger) isoperimetric inequality in the context of Riemannian manifolds and graphs. We characterize the hyperbolic manifolds and graphs (with bounded local geometry) verifying this isoperimetric inequality, in terms of their Gromov boundary improving similar results from a previous work. In particular, we prove that having a pole is a necessary condition and, therefore, it can be removed as hypothesis.