Realization of Anosov Diffeomorphisms on the Torus

We study area preserving Anosov maps on the two-dimensional torus within a fixed homotopy class. We show that the set of pressure functions for Anosov diffeomorphisms with respect to the geometric potential is equal to the set of pressure functions for the linear Anosov automorphism with respect to...

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Published in:arXiv.org 2024-07
Main Authors: Kucherenko, Tamara, Quas, Anthony
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Language:English
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Automorphisms
Isomorphism
Toruses
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description We study area preserving Anosov maps on the two-dimensional torus within a fixed homotopy class. We show that the set of pressure functions for Anosov diffeomorphisms with respect to the geometric potential is equal to the set of pressure functions for the linear Anosov automorphism with respect to H\"{o}lder potentials. We use this result to provide a negative answer to the \(C^{1+\alpha}\) version of the question posed by Rodriguez Hertz on whether two homotopic area preserving \(C^\infty\) Anosov difeomorphisms whose geometric potentials have identical pressure functions must be \(C^\infty\) conjugate.
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subjects Automorphisms
Isomorphism
Toruses
title Realization of Anosov Diffeomorphisms on the Torus
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