A-priori estimates and existence of Gibbs measures: a simplified proof
We prove existence and uniform a-priori estimates for Gibbs states of certain classical lattice systems with unbounded spins and n-particle interactions. We use a characterization of Gibbs measures in terms of their Radon-Nikodym derivatives w.r.t. local shifts of the configuration space and the corresponding integration by parts formula. Detailed proofs are contained in [3]. (C) Academie des Sciences/Elsevier, Paris.
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