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Nonuniqueness for specifications in $\ell^{2+\epsilon}$

Probability 2007-05-23 v4 Dynamical Systems

Abstract

For every p>2p>2, we construct a regular and continuous specification (gg-function), which has a variation sequence that is in lpl^p and which admits multiple Gibbs measures. Combined with a recent result of Johansson and Oberg, this determines the optimal modulus of continuity for a specification which admits multiple Gibbs measures.

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Cite

@article{arxiv.math/0312344,
  title  = {Nonuniqueness for specifications in $\ell^{2+\epsilon}$},
  author = {Noam Berger and Christopher Hoffman and Vladas Sidoravicius},
  journal= {arXiv preprint arXiv:math/0312344},
  year   = {2007}
}

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16 Pages