English

Germ-typicality of the coexistence of infinitely many sinks

Dynamical Systems 2021-04-01 v1

Abstract

In the spirit of Kolmogorov typicality, we introduce the notion of germ-typicality: in a space of dynamics, it encompass all these phenomena that occur for a dense and open subset of parameters of any generic parametrized family of systems. For any 2r<2\le r<\infty, we prove that the Newhouse phenomenon (the coexistence of infinitely many sinks) is locally CrC^r-germ-typical, nearby a dissipative bicycle: a dissipative homoclinic tangency linked to a special heterodimensional cycle. During the proof we show a result of independent interest: the stabilization of some heterodimensional cycles for any regularity class r{1,,}{ω}r\in \{1, \dots, \infty\}\cup \{\omega\} by introducing a new renormalization scheme. We also continue the study of the paradynamics done in [Be15,Be17,BCP16] and prove that parablenders appear by unfolding some heterodimensional cycles.

Keywords

Cite

@article{arxiv.2103.16697,
  title  = {Germ-typicality of the coexistence of infinitely many sinks},
  author = {Pierre Berger and Sylvain Crovisier and Enrique Pujals},
  journal= {arXiv preprint arXiv:2103.16697},
  year   = {2021}
}

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