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Related papers: The fast escaping set for quasiregular mappings

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We show that the points that converge to infinity under iteration of the exponential map form a connected subset of the complex plane.

Dynamical Systems · Mathematics 2010-04-08 Lasse Rempe

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

Much recent work on the iterates of a transcendental entire function $f$ has been motivated by Eremenko's conjecture that all the components of the escaping set $I(f)$ are unbounded. Here we show that if $I(f)$ is disconnected, then the set…

Dynamical Systems · Mathematics 2017-04-03 Philip Rippon , Gwyneth Stallard

For many transcendental entire functions, the escaping set has the structure of a Cantor bouquet, consisting of uncountably many disjoint curves. Rippon and Stallard showed that there are many functions for which the escaping set has a new…

Dynamical Systems · Mathematics 2019-08-21 Yannis Dourekas

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

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

We give an example of a transcendental entire function with a simply connected fast escaping Fatou component, but with no multiply connected Fatou components. We also give a new criterion for points to be in the fast escaping set.

Dynamical Systems · Mathematics 2016-01-26 D. J. Sixsmith

We construct a quasiregular analogue of the function $z\exp(z)$ in dimension 3, which gives the first explicit example of a quasiregular mapping of transcendental type that has exactly one zero. We then modify the construction to create a…

Complex Variables · Mathematics 2019-07-11 Luke Warren

For a non-trivial transcendental semigroup, escaping set I(S) is in general S-forward invariant and it is S-completely invariant if semigroup S is abelian. In the contrary of this result, we investigate completely invariant escaping set…

Dynamical Systems · Mathematics 2018-05-01 Bishnu Hari Subedi , Ajaya Singh

Let $f$ be a transcendental entire function and $U$ be a Fatou component of $f$. We show that if $U$ is an escaping wandering domain of $f$, then most boundary points of $U$ (in the sense of harmonic measure) are also escaping. In the other…

Complex Variables · Mathematics 2010-09-23 Philip J. Rippon , Gwyneth M. Stallard

We show that, if the Julia set of a transcendental entire function is locally connected, then it takes the form of a spider's web in the sense defined by Rippon and Stallard. In the opposite direction, we prove that a spider's web Julia set…

Dynamical Systems · Mathematics 2012-03-27 J. W. Osborne

We give a complete description of the possible Hausdorff dimensions of escaping sets for meromorphic functions with a finite number of singular values. More precisely, for any given $d\in [0,2]$ we show that there exists such a meromorphic…

Dynamical Systems · Mathematics 2021-10-04 Magnus Aspenberg , Weiwei Cui

It is shown that the Hausdorff dimension of the fast escaping set of a quasiregular self-map of ${\mathbb R}^3$ can take any value in the interval $[1,3]$. The Hausdorff dimension of the Julia set of such a map is estimated under some…

Dynamical Systems · Mathematics 2025-10-09 Walter Bergweiler , Athanasios Tsantaris

We study a family of transcendental entire functions of genus zero, for which all of the zeros lie within a closed sector strictly smaller than a half-plane. In general these functions lie outside the Eremenko-Lyubich class. We show that…

Complex Variables · Mathematics 2016-01-26 D. 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

In this paper, we consider the Halpern iteration scheme for a finite family of quasinonexpansive mappings and then prove a strong convergence theorem to their common fixed point in a complete geodesic space with curvature bounded above by…

Functional Analysis · Mathematics 2019-11-19 Tatsuki Ezawa , Yasunori Kimura

We mainly generalize the notion of abelian transcendental semigroup to nearly abelian transcendental semigroup. We prove that Fatou set, Julia set and escaping set of nearly abelian transcendental semigroup are completely invariant. We…

Dynamical Systems · Mathematics 2018-08-03 Bishnu Hari Subedi , Ajaya Singh

There are several classes of transcendental entire functions for which the Julia set consists of an uncountable union of disjoint curves each of which joins a finite endpoint to infinity. Many authors have studied the topological properties…

Dynamical Systems · Mathematics 2018-02-09 Vasiliki Evdoridou , David J. Sixsmith

We wish to investigate some elementary problems concerning topological dynamics revolving around our proposed definition of escaping set. We also discuss the notion of escaping set in the induced dynamics of the hyperspace. Moreover, we…

Dynamical Systems · Mathematics 2019-04-30 Kushal Lalwani

Let $f$ and $g$ be transcendental entire functions, each with a bounded set of singular values, and suppose that $f$ and $g$ are affinely equivalent (that is, $g \circ \phi= \psi\circ f$, where $\phi,\psi:\C\to\C$ are affine). We show that…

Dynamical Systems · Mathematics 2010-04-08 Lasse Rempe , Gwyneth M. Stallard