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We introduce a new technique that allows us to make progress on two long standing conjectures in transcendental dynamics: Baker's conjecture that a transcendental entire function of order less than 1/2 has no unbounded Fatou components, and…

Dynamical Systems · Mathematics 2011-12-22 Philip J. Rippon , Gwyneth M. Stallard

For a transcendental entire function, a partial affirmative answer to Baker's question on the boundedness of its Fatou components is given. In addition, we have addressed Wang's question on Fej\'er gaps. Certain results about functions with…

Complex Variables · Mathematics 2022-12-09 Ramanpreet Kaur

We prove a form of the $\cos \pi \rho$ theorem which gives strong estimates for the minimum modulus of a transcendental entire function of order zero. We also prove a generalisation of a result of Hinkkanen that gives a sufficient condition…

Complex Variables · Mathematics 2008-01-24 P. J. Rippon , G. M. Stallard

We introduce a new approximation technique into the context of complex dynamics that allows us to construct examples of transcendental entire functions with unbounded wandering domains. We provide examples of entire functions with an orbit…

Dynamical Systems · Mathematics 2023-02-03 Vasiliki Evdoridou , Adi Glücksam , Leticia Pardo-Simón

This paper is devoted to establish sufficient conditions under which a transcendental meromorphic function has no unbounded Fatou components and to extend some results for entire functions to meromorphic functions. Actually, we shall mainly…

Complex Variables · Mathematics 2007-11-21 Zheng Jian-Hua , Piyapong Niamsup

Baker proved that for transcendental entire functions there is at most one completely invariant component of the Fatou set. It was observed by Julien Duval that there is a missing case in Baker's proof. In this article we follow Baker's…

Dynamical Systems · Mathematics 2018-03-14 Patricia Domínguez , Guillermo Sienra

Given an entire transcendental function f with a non-completely invariant Baker domain, we define a Baker lamination on geodesics to study the divergence and convergence of a pinching process of curves in U. If the boundary of some curve in…

Dynamical Systems · Mathematics 2023-05-18 Rodrigo Robles Montero

The issue of whether an analytic function has wandering domains has long been of interest in complex dynamics. Sullivan proved in 1985 that rational maps do not have wandering domains. On the other hand, several transcendental entire…

Dynamical Systems · Mathematics 2019-10-14 Yannis Dourekas

We consider transcendental entire functions of finite order for which the zeros and $1$-points are in disjoint sectors. Under suitable hypotheses on the sizes of these sectors we show that such functions must have a specific form, or that…

Complex Variables · Mathematics 2020-12-29 Walter Bergweiler , Alexandre Eremenko

This article studies the singular values of entire functions of the form $E^k (z)+P(z)$ where $E^k$ denotes the $k-$times composition of $e^z$ with itself and $P$ is any non-constant polynomial. It is proved that the full preimage of each…

Complex Variables · Mathematics 2024-07-23 Sukanta Das , Tarakanta Nayak

We prove that there exist three transcendental entire functions that have infinite number of domains which lie in the wandering component of each of these functions and their composites. This result is a generalization of the result of…

Dynamical Systems · Mathematics 2018-03-28 Bishnu Hari Subedi , Ajaya Singh

Let $f$ be a transcendental entire function and let $I(f)$ denote the set of points that escape to infinity under iteration. We give conditions which ensure that, for certain functions, $I(f)$ is connected. In particular, we show that…

Complex Variables · Mathematics 2008-01-24 P. J. Rippon , G. M. Stallard

We show that there exists an entire function f without zeros for which the associated Newton function N(z)=z-f(z)/f'(z) is a transcendental meromorphic functions without Baker domains. We also show that there exists an entire function f…

Complex Variables · Mathematics 2010-06-22 Walter Bergweiler

Let f be a real entire function whose set S(f) of singular values is real and bounded. We show that, if f satisfies a certain function-theoretic condition (the "sector condition"), then $f$ has no wandering domains. Our result includes all…

Dynamical Systems · Mathematics 2014-12-10 Helena Mihaljević-Brandt , Lasse Rempe-Gillen

In this paper, we show that there exist transcendental meromorphic functions with a cycle of 2-periodic Fatou components, where one is simply connected while the other is doubly connected. In particular, the doubly connected Fatou component…

Complex Variables · Mathematics 2024-05-03 Jiaxing Huang , Chengfa Wu , Jian-Hua Zheng

The dynamics of transcendental functions in the complex plane has received a significant amount of attention. In particular much is known about the description of Fatou components. Besides the types of periodic Fatou components that can…

Complex Variables · Mathematics 2017-05-26 Leandro Arosio , Anna Miriam Benini , John Erik Fornaess , Han Peters

We study the iteration of transcendental self-maps of $\mathbb{C}^*:=\mathbb{C}\setminus \{0\}$, that is, holomorphic functions $f:\mathbb{C}^*\to\mathbb{C}^*$ for which both zero and infinity are essential singularities. We use…

Dynamical Systems · Mathematics 2019-12-20 David Martí-Pete

An omitted value of a transcendental meromorphic function $f$ is called a Baker omitted value, in short \textit{bov} if there is a disk $D$ centered at the bov such that each component of the boundary of $f^{-1}(D)$ is bounded. Assuming…

Dynamical Systems · Mathematics 2021-07-06 Subhasis Ghora , Tarakanta Nayak , Satyajit Sahoo

We first establish any continuum without interiors can be a limit set of iterations of an entire function on an oscillating wandering domain, and hence arise as a component of Julia sets. Recently, Luka Boc Thaler showed that every bounded…

Complex Variables · Mathematics 2023-09-11 Jiaxing Huang , Jian-Hua Zheng

Let $f$ be a transcendental entire function and let $U$ be a univalent Baker domain of $f$. We prove a new result about the boundary behaviour of conformal maps and use this to show that the non-escaping boundary points of $U$ form a set of…

Dynamical Systems · Mathematics 2014-11-26 Phil Rippon , Gwyneth Stallard
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