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arXiv · 1808.10091

Boundedness and invariant metrics for diffeomorphism cocycles over hyperbolic systems

Victoria Sadovskaya
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Abstract

Let $A$ be a H\"older continuous cocycle over a hyperbolic dynamical system with values in the group of diffeomorphisms of a compact manifold $M$. We consider the periodic data of $A$, i.e., the set of its return values along the periodic orbits in the base. We show that if the periodic data of $A$ is bounded in Diff$^{\,q}(M)$, $q>1$, then the set of values of the cocycle is bounded in Diff$^{\,r}(M)$ for each $r<q$. Moreover, such a cocycle is isometric with respect to a H\"older continuous family of Riemannian metrics on $M$.

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Victoria Sadovskaya. 2018-08-30. Boundedness and invariant metrics for diffeomorphism cocycles over hyperbolic systems. https://arxiv.org/abs/1808.10091

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