Vol. 10, No. 3, 2017

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ISSN: 1944-4184 (e-only)
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Dynamics of vertical real rhombic Weierstrass elliptic functions

Lorelei Koss and Katie Roy

Vol. 10 (2017), No. 3, 361–378
Abstract

In this paper, we investigate the dynamics of iterating the Weierstrass elliptic functions on vertical real rhombic lattices. The main result of this paper is to show that these functions can have at most one real attracting or parabolic cycle. If there is no real attracting or parabolic cycle, we prove that the real and imaginary axes, as well as translations of these lines by the lattice, lie in the Julia set. Further, we prove that if there exists a real attracting fixed point, then the intersection of the Julia set with the real axis is a Cantor set. Finally, we apply the theorem to find parameters in every real rhombic shape equivalence class for which the Julia set is the entire sphere.

Keywords
complex dynamics, meromorphic functions, Julia sets
Mathematical Subject Classification 2010
Primary: 54H20, 37F10, 37F20
Milestones
Received: 15 May 2015
Revised: 22 April 2016
Accepted: 2 May 2016
Published: 14 December 2016

Communicated by Michael E. Zieve
Authors
Lorelei Koss
Department of Mathematics and Computer Science
Dickinson College
P.O. Box 1773
Carlisle, PA 17013
United States
Katie Roy
Department of Mathematics and Computer Science
Dickinson College
P.O. Box 1773
Carlisle, PA 17013
United States