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Type: Artigo
Title: Rigidity for partially hyperbolic diffeomorphisms
Author: Varão, R.
Abstract: In this work we completely classify (Formula presented.) conjugacy for smooth conservative (pointwise) partially hyperbolic diffeomorphisms homotopic to a linear Anosov automorphism on the 3-torus by its center foliation behavior. We prove that the uniform version of absolute continuity for the center foliation is the natural hypothesis to obtain (Formula presented.) conjugacy to its linear Anosov automorphism. Avila, Viana and Wilkinson [Absolute continuity, Lyapunov exponents and rigidity I: Geodesic flows. J. Eur. Math. Soc. (JEMS) 17(6) (2015), 1435–1462] proved that for a perturbation in the volume preserving case of the time-one map of an Anosov flow absolute continuity of the center foliation implies smooth rigidity. The absolute version of absolute continuity is the appropriate scenario for our context since it is not possible to obtain a result analogous to that of Avila, Viana and Wilkinson for our class of maps, for absolute continuity alone fails miserably to imply smooth rigidity for our class of maps. Our theorem is a global rigidity result as we do not assume the diffeomorphism to be at some distance from the linear Anosov automorphism. We also do not assume ergodicity. In particular, a metric condition on the center foliation implies ergodicity and (Formula presented.) center foliation. © Cambridge University Press, 2017
Subject: Lyapunov
Expoentes de
Difeomorfismos de
Teoria ergódica
Folheações (Matemática)
Lyapunov exponents
Anosov diffeomorphisms
Ergodic theory
Foliations (Mathematics)
Country: Reino Unido
Editor: Cambridge University Press
Rights: fechado
Identifier DOI: 10.1017/etds.2017.11
Date Issue: 2017
Appears in Collections:IMECC - Artigos e Outros Documentos

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