94-381 Timo Seppalainen

Entropy, Limit Theorems and Variational Principles for Disordered Lattice Systems (140K, AMSTeX) Dec 2, 94

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Abstract. We study infinite volume limits and Gibbs states of disordered lattice systems with bounded and continuous potentials. Our main tools are a generalization of relative entropy for random reference measures and a large deviation theory for nonstationary independent processes. We find that many familiar results of invariant potentials, such as large deviation theorems, variational principles, and equivalence of ensembles, continue to hold for disordered models, with suitably modified statements.

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