Distributional chaos in multifractal analysis,recurrence and transitivity

An Chen Fudan University Xueting Tian Fudan University

Dynamical Systems mathscidoc:2103.11003

Ergodic Theory and Dynamical Systems, 41, 349-378, 2021
There is much research on the dynamical complexity on irregular sets andlevel sets of ergodic average from the perspective of density in base space, theHausdorff dimension, Lebesgue positive measure, positive or full topological entropy (andtopological pressure), etc. However, this is not the case from the viewpoint of chaos.There are many results on the relationship of positive topological entropy and variouschaos. However, positive topological entropy does not imply a strong version of chaos,called DC1. Therefore, it is non-trivial to study DC1 on irregular sets and level sets. Inthis paper, we will show that, for dynamical systems with specification properties, thereexist uncountable DC1-scrambled subsets in irregular sets and level sets. Meanwhile, weprove that several recurrent level sets of points with different recurrent frequency haveuncountable DC1-scrambled subsets. The major argument in proving the above results isthat there exists uncountable DC1-scrambled subsets in saturated sets.
Recurrence; Birkhoff ergodic average; Chaos theory
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  title={Distributional chaos in multifractal analysis,recurrence and transitivity},
  author={An Chen, and Xueting Tian},
  booktitle={Ergodic Theory and Dynamical Systems},
An Chen, and Xueting Tian. Distributional chaos in multifractal analysis,recurrence and transitivity. 2021. Vol. 41. In Ergodic Theory and Dynamical Systems. pp.349-378. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20210323130323912762751.
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