English

An entropy dichotomy for singular star flows

Dynamical Systems 2021-01-26 v1

Abstract

We show that non-trivial chain recurrent classes for generic C1C^1 star flows satisfy a dichotomy: either they have zero topological entropy, or they must be isolated. Moreover, chain recurrent classes for generic star flows with zero entropy must be sectional hyperbolic, and cannot be detected by any non-trivial ergodic invariant probability. As a result, we show that C1C^1 generic star flows have only finitely many Lyapunov stable chain recurrent classes.

Keywords

Cite

@article{arxiv.2101.09480,
  title  = {An entropy dichotomy for singular star flows},
  author = {Maria José Pacifico and Fan Yang and Jiagang Yang},
  journal= {arXiv preprint arXiv:2101.09480},
  year   = {2021}
}

Comments

24 pages, 4 figures. arXiv admin note: text overlap with arXiv:1901.07436

R2 v1 2026-06-23T22:26:57.705Z