Geodesic
Nonfinite perturbations of Gibbs fields
Teoretičeskaâ i matematičeskaâ fizika, Tome 74 (1988) no. 1, pp. 16-28 
R. L. Dobrushin; M. R. Martirosyan. Nonfinite perturbations of Gibbs fields. Teoretičeskaâ i matematičeskaâ fizika, Tome 74 (1988) no. 1, pp. 16-28. http://geodesic.mathdoc.fr/item/TMF_1988_74_1_a1/
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     title = {Nonfinite perturbations of {Gibbs} fields},
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Voir la notice de l'article provenant de la source Math-Net.Ru

A study is made of small nonfinite perturbations of a Gibbs Markov random field that satisfies certain natural conditions of weakness of the correlations at sufficiently large distances. Sufficient conditions on the smallness of the perturbing potential to ensure that the analyticity of the free energy is not violated are obtained.

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