English

Dynamic rays of bounded-type transcendental self-maps of the punctured plane

Dynamical Systems 2018-06-20 v2 Complex Variables

Abstract

We study the escaping set of functions in the class B\mathcal B^*, that is, holomorphic functions f:CCf:\mathbb C^*\to\mathbb C^* for which both zero and infinity are essential singularities, and the set of singular values of ff is contained in a compact annulus of C\mathbb C^*. For functions in the class B\mathcal B^*, escaping points lie in their Julia set. If ff is a composition of finite order transcendental self-maps of C\mathbb C^* (and hence, in the class B\mathcal B^*), then we show that every escaping point of ff can be connected to one of the essential singularities by a curve of points that escape uniformly. Moreover, for every essential itinerary e{0,}Ne\in\{0,\infty\}^\mathbb N, we show that the escaping set of ff contains a Cantor bouquet of curves that accumulate to {0,}\{0,\infty\} according to ee under iteration by ff.

Keywords

Cite

@article{arxiv.1603.03311,
  title  = {Dynamic rays of bounded-type transcendental self-maps of the punctured plane},
  author = {Núria Fagella and David Martí-Pete},
  journal= {arXiv preprint arXiv:1603.03311},
  year   = {2018}
}