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arXiv · 2304.05910

Thermodynamic formalism for piecewise expanding maps in finite dimension

Viviane Baladi·Roberto Castorrini
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Abstract

We study weighted transfer operators associated to a piecewise expanding map on a compact manifold, and a piecewise Holder weight, acting on Sobolev spaces. We bound the essential spectral radius in terms of a topological pressure for a subadditive potential. Under a new small boundary pressure condition, we improve the estimate by establishing a variational principle for piecewise expanding maps and subadditive potentials. Version v2 is the electronic copy of the version to appear in DCDS

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Viviane Baladi, Roberto Castorrini. 2023-04-12. Thermodynamic formalism for piecewise expanding maps in finite dimension. https://doi.org/10.3934/dcds.2024023

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