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arXiv · 1801.00023

Exceptional sets for nonuniformly hyperbolic diffeomorphisms

Sara Campos·Katrin Gelfert
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Abstract

For a surface diffeomorphism, a compact invariant locally maximal set $W$ and some subset $A\subset W$ we study the $A$-exceptional set, that is, the set of points whose orbits do not accumulate at $A$. We show that if the Hausdorff dimension of $A$ is smaller than the Hausdorff dimension $d$ of some ergodic hyperbolic measure, then the topological entropy of the exceptional set is at least the entropy of this measure and its Hausdorff dimension is at least $d$. Particular consequences occur when there is some a priori defined hyperbolic structure on $W$ and, for example, if there exists an SRB measure.

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Sara Campos, Katrin Gelfert. 2017-12-29. Exceptional sets for nonuniformly hyperbolic diffeomorphisms. https://arxiv.org/abs/1801.00023

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