English

Parametrized family of pseudo-arc attractors: physical measures and prime end rotations

Dynamical Systems 2022-01-28 v2 General Topology

Abstract

The main goal of this paper is to study topological and measure-theoretic properties of an intriguing family of strange planar attractors. Building towards these results, we first show that any generic Lebesgue measure preserving map ff generates the pseudo-arc as inverse limit with ff as a single bonding map. These maps can be realized as attractors of disc homeomorphisms in such a way that the attractors vary continuously (in Hausdorff distance on the disc) with the change of bonding map as a parameter. Furthermore, for generic Lebesgue measure preserving maps ff the background Oxtoby-Ulam measures induced by Lebesgue measure for ff on the interval are physical on the disc and in addition there is a dense set of maps ff defining a unique physical measure. Moreover, the family of physical measures on the attractors varies continuously in the weak* topology; i.e. the parametrized family is statistically stable. We also find an arc in the generic Lebesgue measure preserving set of maps and construct a family of disk homeomorphisms parametrized by this arc which induces a continuously varying family of pseudo-arc attractors with prime ends rotation numbers varying continuously in [0,1/2][0,1/2]. It follows that there are uncountably many dynamically non-equivalent embeddings of the pseudo-arc in this family of attractors.

Keywords

Cite

@article{arxiv.2107.10347,
  title  = {Parametrized family of pseudo-arc attractors: physical measures and prime end rotations},
  author = {Jernej Činč and Piotr Oprocha},
  journal= {arXiv preprint arXiv:2107.10347},
  year   = {2022}
}

Comments

Updated version accepted for publication in Proceedings of the London Mathematical Society