English

Wandering dynamics of transcendental functions

Dynamical Systems 2026-02-11 v1 Complex Variables

Abstract

We show that any uniformly escaping and wandering dynamics of a holomorphic function on a compact subset of the plane can be realised by a transcendental meromorphic function on C\mathbb{C}. More precisely, let φ\varphi be a holomorphic function on an open subset of the complex plane, and suppose that KK is a compact set such that φ\varphi and all its iterates φn\varphi^n are defined on KK, and φn(K)\varphi^n(K)\to\infty as nn\to\infty. We prove that there exist a transcendental meromorphic function f ⁣:CC^f\colon\mathbb{C}\to\widehat{\mathbb{C}} and a compact set K~\widetilde{K} such that the dynamics of ff on the orbit of K~\widetilde{K} is conjugate, via a smooth change of coordinate close to the identity, to that of φ\varphi on the orbit of KK. If KK does not separate the plane, the function ff may be chosen to be entire. If all iterates of φ\varphi are univalent on KK, we can take K~=K\widetilde{K}=K. We also prove a similar theorem for oscillating dynamics. Finally, we use our results to answer a number of questions of Benini et al. concerning wandering domains of entire functions.

Keywords

Cite

@article{arxiv.2602.09952,
  title  = {Wandering dynamics of transcendental functions},
  author = {Vasiliki Evdoridou and David Martí-Pete and Lasse Rempe},
  journal= {arXiv preprint arXiv:2602.09952},
  year   = {2026}
}

Comments

38 pages, 4 figures