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Related papers: On Julia limiting directions in higher dimensions

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We show that the set of Julia limiting directions of a transcendental-type $K$-quasiregular mapping $f:\mathbb{R}^n\to \mathbb{R}^n$ must contain a component of a certain size, depending on the dimension $n$, the maximal dilatation $K$, and…

Dynamical Systems · Mathematics 2024-05-10 Alastair N. Fletcher , Julie M. Steranka

The Fatou-Julia theory for rational functions has been extended both to transcendental meromorphic functions and more recently to several different types of quasiregular mappings in higher dimensions. We extend the iterative theory to…

Dynamical Systems · Mathematics 2018-05-04 Luke Warren

We construct a quasiregular mapping in $\mathbb{R}^3$ that is the first to illustrate several important dynamical properties: the quasi-Fatou set contains wandering components; these quasi-Fatou components are bounded and hollow; and the…

Complex Variables · Mathematics 2025-03-19 Jack Burkart , Alastair N. Fletcher , Daniel A. Nicks

It is shown that for quasiregular maps of positive lower order the Julia set coincides with the boundary of the fast escaping set.

Dynamical Systems · Mathematics 2014-11-04 Walter Bergweiler , Alastair Fletcher , Daniel A. Nicks

We consider the iteration of quasiregular maps of transcendental type from $\mathbb{R}^d$ to $\mathbb{R}^d$. In particular we study quasi-Fatou components, which are defined as the connected components of the complement of the Julia set.…

Dynamical Systems · Mathematics 2018-02-02 Daniel A. Nicks , David J. Sixsmith

In this article, we investigate the boundary of the escaping set I(f) for quasiregular mappings on R^n, both in the uniformly quasiregular case and in the polynomial type case. The aim is to show that the boundary of I(f) is the Julia set…

Complex Variables · Mathematics 2009-09-02 Alastair Fletcher , Daniel A. Nicks

We show that wandering domains can exist in the Fatou set of a polynomial type quasiregular mapping of the plane. We also give an example of a quasiregular mapping of the plane, with an essential singularity at infinity, which has a…

Dynamical Systems · Mathematics 2015-03-17 Daniel A. Nicks

We consider the iteration of quasiregular maps of transcendental type from $\mathbb{R}^d$ to $\mathbb{R}^d$. We give a bound on the rate at which the iterates of such a map can escape to infinity in a periodic component of the quasi-Fatou…

Dynamical Systems · Mathematics 2018-02-02 Daniel A. Nicks , David J. Sixsmith

We define a quasi-Fatou component of a quasiregular map as a connected component of the complement of the Julia set. A domain in $\mathbb{R}^d$ is called hollow if it has a bounded complementary component. We show that for each $d \geq 2$…

Dynamical Systems · Mathematics 2018-02-02 Daniel A. Nicks , David J. Sixsmith

We discuss the dynamics of semigroups of transcendental entire functions using Fatou-Julia theory and provide a condition for the complete invariance of escaping set and Julia set of transcendental semigroups. Results regarding limit…

Dynamical Systems · Mathematics 2016-03-16 Dinesh Kumar , Sanjay Kumar , Kin Keung Poon

The Fatou-Julia iteration theory of rational functions has been extended to quasiregular mappings in higher dimension by various authors. The purpose of this paper is an analogous extension of the iteration theory of transcendental entire…

Dynamical Systems · Mathematics 2014-11-04 Walter Bergweiler , Daniel A. Nicks

Let $f$ and $g$ be two quasiregular maps in $\mathbb{R}^d$ that are of transcendental type and also satisfy $f\circ g =g \circ f$. We show that if the fast escaping sets of those functions are contained in their respective Julia sets then…

Dynamical Systems · Mathematics 2021-07-01 Athanasios Tsantaris

The Fatou-Julia iteration theory of rational and transcendental entire functions has recently been extended to quasiregular maps in more than two real dimensions. Our goal in this paper is similar; we extend the iteration theory of analytic…

Dynamical Systems · Mathematics 2019-04-12 Daniel A. Nicks , David J. Sixsmith

We extend results about the dimension of the radial Julia set of certain exponential functions to quasiregular Zorich maps in higher dimensions. Our results improve on previous estimates of the dimension also in the special case of…

Dynamical Systems · Mathematics 2022-03-08 Walter Bergweiler , Jie Ding

We study the dynamics of an arbitrary semigroup of transcendental entire functions using Fatou-Julia theory. Several results of the dynamics associated with iteration of a transcendental entire function have been extended to transcendental…

Dynamical Systems · Mathematics 2015-10-08 Dinesh Kumar , Sanjay Kumar

We investigate the dynamics of semigroups generated by a family of polynomial maps on the Riemann sphere such that the postcritical set in the complex plane is bounded. The Julia set of such a semigroup may not be connected in general. We…

Dynamical Systems · Mathematics 2011-01-20 Hiroki Sumi

We investigate the dynamics of semigroups generated by polynomial maps on the Riemann sphere such that the postcritical set in the complex plane is bounded. Moreover, we investigate the associated random dynamics of polynomials.…

Dynamical Systems · Mathematics 2014-02-26 Hiroki Sumi

We show that an invariant Fatou component of a hyperbolic transcendental entire function is a bounded Jordan domain (in fact, a quasidisc) if and only if it contains only finitely many critical points and no asymptotic curves. We use this…

Dynamical Systems · Mathematics 2016-02-11 Walter Bergweiler , Núria Fagella , Lasse Rempe-Gillen

The primary aim of this paper is to give topological obstructions to Cantor sets in $\mathbb{R}^3$ being Julia sets of uniformly quasiregular mappings. Our main tool is the genus of a Cantor set. We give a new construction of a genus $g$…

Dynamical Systems · Mathematics 2024-08-07 Alastair N. Fletcher , Daniel Stoertz , Vyron Vellis

We study the approximation of conformal mappings with the polynomials defined by Keldysh and Lavrentiev from an extremal problem considered by Julia. These polynomials converge uniformly on the closure of any Smirnov domain to the conformal…

Complex Variables · Mathematics 2013-07-24 Igor E. Pritsker
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