Abstract
We show that if is an annular homeomorphism admitting an attractor which is an irreducible annular continua with two different rotation numbers, then the entropy of is positive. Further, the entropy is shown to be associated to a –robust rotational horseshoe. On the other hand, we construct examples of annular homeomorphisms with such attractors for which the rotation interval is uniformly large but the entropy approaches zero as much as desired.
The developed techniques allow us to obtain similar results in the context of Birkhoff attractors.
Citation
Alejandro Passeggi. Rafael Potrie. Martín Sambarino. "Rotation intervals and entropy on attracting annular continua." Geom. Topol. 22 (4) 2145 - 2186, 2018. https://doi.org/10.2140/gt.2018.22.2145
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