English

Two counterexamples in rational and interval dynamics

Dynamical Systems 2008-10-09 v1

Abstract

In rational dynamics, we prove the existence of a polynomial that satisfies the Topological Collet-Eckmann condition, but which has a recurrent critical orbit that is not Collet-Eckmann. This shows that the converse of the main theorem in [11] does not hold. In interval dynamics, we show that the Collet-Eckmann property for recurrent critical orbits is not a topological invariant for real polynomials with negative Schwarzian derivative. This contradicts a conjecture of Swiatek [22].

Keywords

Cite

@article{arxiv.0810.1474,
  title  = {Two counterexamples in rational and interval dynamics},
  author = {Nicolae Mihalache},
  journal= {arXiv preprint arXiv:0810.1474},
  year   = {2008}
}

Comments

49 pages, 2 figures

R2 v1 2026-06-21T11:28:41.321Z