English

Thermodynamic formalism for hyperbolic random dynamical systems

Dynamical Systems 2026-07-06 v1 Probability

Abstract

We develop thermodynamic formalism for random Anosov maps and uniformly H\"older random potentials. We assume uniform fibre hyperbolicity given by deterministic invariant cone fields, a one-dimensional stable direction, and a fibrewise mixing condition whose mixing time may depend on the base point. To do so, we construct adapted projective cones for the random Perron--Frobenius cocycle and prove that the cocycle contracts the associated Hilbert projective metrics. This allows us to construct a P\mathbb P-relative equilibrium state, prove its uniqueness, and establish quenched exponential decay of correlations.

Cite

@article{arxiv.2607.04900,
  title  = {Thermodynamic formalism for hyperbolic random dynamical systems},
  author = {Lucas Amorim and Matheus M Castro and Benoit Saussol and Sandro Vaienti},
  journal= {arXiv preprint arXiv:2607.04900},
  year   = {2026}
}

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76 pages, 0 figures