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arXiv · 2011.12264

Hausdorff dimension of Cantor intersections and robust heterodimensional cycles for heterochaos horseshoe maps

Yoshitaka Saiki·Hiroki Takahasi·James A. Yorke
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Abstract

As a model to provide a hands-on, elementary understanding of chaotic dynamics in dimension three, we introduce a $C^2$-open set of diffeomorphisms of $\mathbb R^3$ having two horseshoes with different dimensions of instability. We prove that: the unstable set of one horseshoe and the stable set of the other are of Hausdorff dimension nearly $2$ whose cross sections are Cantor sets; the intersection of the unstable and stable sets contains a fractal set of Hausdorff dimension nearly $1$. As a corollary we detect $C^2$-robust heterodimensional cycles. Our proof employs the theory of normally hyperbolic invariant manifolds and the thicknesses of Cantor sets.

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Yoshitaka Saiki, Hiroki Takahasi, James A. Yorke. 2020-11-24. Hausdorff dimension of Cantor intersections and robust heterodimensional cycles for heterochaos horseshoe maps. https://arxiv.org/abs/2011.12264

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