English

Capture zones of the family of functions lambda z^m exp(z)

Dynamical Systems 2015-06-26 v1

Abstract

We consider the family of entire transcendental maps given by Fλ,m=λzmexp(z)F_{\lambda,m}= \lambda z^m exp(z) where m>=2. All functions Fλ,mF_{\lambda,m} have a superattracting fixed point at z=0, and a critical point at z=-m. In the dynamical plane we study the topology of the basin of attraction of z=0. In the parameter plane we focus on the capture behaviour, i.e., \lambda values such that the critical point belongs to the basin of attraction of z=0. In particular, we find a capture zone for which this basin has a unique connected component, whose boundary is then non-locally connected. However, there are parameter values for which the boundary of the immediate basin of z=0 is a quasicircle.

Keywords

Cite

@article{arxiv.math/0207103,
  title  = {Capture zones of the family of functions lambda z^m exp(z)},
  author = {N. Fagella and A. Garijo},
  journal= {arXiv preprint arXiv:math/0207103},
  year   = {2015}
}

Comments

25 pages, 14 figures. Accepted for publication in the International Journal of bifurcation and Chaos