Meromorphic functions whose action on their Julia sets is Non-Ergodic

Fuente: arXiv
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Main Authors: Chen, Tao, Jiang, Yunping, Keen, Linda
Format: Preprint
Published: 2024
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_version_ 1866911627271471104
author Chen, Tao
Jiang, Yunping
Keen, Linda
author_facet Chen, Tao
Jiang, Yunping
Keen, Linda
contents Nevanlinna functions are meromorphic functions with a finite number of asymptotic values and no critical values. In [KK2] it was proved that if the orbits of all the asymptotic values accumulate on a compact set on which the function acts as a repeller, then the function acts ergodically on its Julia set. In [CJK4] we proved the action of the function on its Julia set is still ergodic if some, but not all of the asymptotic values land on infinity, and the remaining ones land on a compact repeller. In this paper, we complete the characterization of ergodicity for Nevanlinna functions by proving that if all the asymptotic values land on infinity, then the Julia set is the whole sphere and the action of the map there is non-ergodic.
format Preprint
id arxiv_https___arxiv_org_abs_2409_12127
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Meromorphic functions whose action on their Julia sets is Non-Ergodic
Chen, Tao
Jiang, Yunping
Keen, Linda
Dynamical Systems
Primary: 37F10, 30F05, Secondary: 30D05, 37A30
Nevanlinna functions are meromorphic functions with a finite number of asymptotic values and no critical values. In [KK2] it was proved that if the orbits of all the asymptotic values accumulate on a compact set on which the function acts as a repeller, then the function acts ergodically on its Julia set. In [CJK4] we proved the action of the function on its Julia set is still ergodic if some, but not all of the asymptotic values land on infinity, and the remaining ones land on a compact repeller. In this paper, we complete the characterization of ergodicity for Nevanlinna functions by proving that if all the asymptotic values land on infinity, then the Julia set is the whole sphere and the action of the map there is non-ergodic.
title Meromorphic functions whose action on their Julia sets is Non-Ergodic
topic Dynamical Systems
Primary: 37F10, 30F05, Secondary: 30D05, 37A30
url https://arxiv.org/abs/2409.12127