Some non-hyperbolic systems with strictly non-zero Lyapunov exponents for all invariant measures: Horseshoes with internal tangencies

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We study the hyperbolicity of a class of horseshoes exhibiting an internal tangency, i.e. a point of homoclinic tangency accumulated by periodic points. In particular these systems are strictly not uniformly hyperbolic. However we show that all the Lyapunov exponents of all invariant measures are uniformly bounded away from 0. This is the first known example of this kind.
10 pages, 2 figures. This is an extended version of the paper "Hyperbolicity of periodic points for horseshoes with internal tangencies" by S. Luzzatto and I. Rios

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Dynamical Systems, 37D25; 37G25

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http://salesiana.dossiersoluciones.com/handle/123456789/67664

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0306041
 http://arxiv.org/abs/math/0306041

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arXiv