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We show that every polynomial of degree $d \geq 2$ in the connectedness locus with an attracting cycle which attracts at least two critical points and no indifferent cycles is not combinatorially rigid. In particular, we prove that a…

Dynamical Systems · Mathematics 2026-03-10 Yueyang Wang

We study the dynamics of the H\'enon map defined over complete, locally compact non-Archimedean fields of odd residue characteristic. We establish basic properties of its one-sided and two-sided filled Julia sets, and we determine, for each…

Number Theory · Mathematics 2018-02-07 Kenneth Allen , David DeMark , Clayton Petsche

We show that Fatou components of a semi-hyperbolic rational map are John domains and that the converse does not hold. This generalizes a famous result of Carleson, Jones and Yoccoz. We show that a connected Julia set is locally connected…

Dynamical Systems · Mathematics 2009-02-26 Nicolae Mihalache

Let f and g two rational functions having the same Julia set J_f. Lets suppose that f has a rational indifferent periodic point and that the critical set of f is disjoint of J_f. Then or J_f has to be equal to P^1, a circle, an arc of a…

Complex Variables · Mathematics 2007-05-23 Tien-Cuong DINH

Let $f$ be a transcendental entire function, and let $U,V\subset\mathbb{C}$ be disjoint simply-connected domains. Must one of $f^{-1}(U)$ and $f^{-1}(V)$ be disconnected? In 1970, Baker implicitly gave a positive answer to this question, in…

Dynamical Systems · Mathematics 2020-08-26 Lasse Rempe-Gillen , Dave Sixsmith

We study the dynamics of polynomials with coefficients in a non-Archimedean field $K,$ where $K$ is a field containing a dense subset of algebraic elements over a discrete valued field $k.$ We prove that every wandering Fatou component is…

Dynamical Systems · Mathematics 2010-05-14 Eugenio Trucco

We prove a Fatou type theorem for bounded functions with d_J -bar differential of a controled growth on smoothly bounded domains in an almost complex manifold.

Complex Variables · Mathematics 2022-04-13 Alexandre Sukhov

We survey the definition of the radial Julia set of a meromorphic function (in fact, more generally, any "Ahlfors islands map"), and give a simple proof that the Hausdorff dimension of the reduced Julia set always coincides with the…

Dynamical Systems · Mathematics 2009-01-21 Lasse Rempe

The characterization and properties of Julia sets of one parameter family of transcendental meromorphic functions $\zeta_\lambda(z)=\lambda \frac{z}{z+1} e^{-z}$, $\lambda >0$, $z\in \mathbb{C}$ is investigated in the present paper. It is…

Dynamical Systems · Mathematics 2014-09-09 M. Sajid , G. P. Kapoor

C. Bishop has constructed an example of an entire function f in Eremenko-Lyubich class with at least two grand orbits of oscillating wandering domains. In this paper we show that his example has exactly two such orbits, that is, f has no…

Dynamical Systems · Mathematics 2014-10-14 Núria Fagella , Sébastien Godillon , Xavier Jarque

In this paper, we study functions of bounded variation on a complete and connected metric space with finite one-dimensional Hausdorff measure. The definition of BV functions on a compact interval based on pointwise variation is extended to…

Metric Geometry · Mathematics 2019-09-26 Panu Lahti , Xiaodan Zhou

Let $f$ be a polynomial-like mapping of the sphere of degree $d \geq 2$. We show that the Julia set $J(f)$ of $f$ cannot be the union of a finite number of proper indecomposable subcontinua. As a corollary, we prove that $J(f)$ is an…

Dynamical Systems · Mathematics 2024-01-01 Elena Gomes

We study the dynamics of polynomial maps on the boundary of the central hyperbolic component $\mathcal H_d$. We prove the local connectivity of Julia sets and a rigidity theorem for maps on the regular part of $\partial\mathcal H_d$. Our…

Dynamical Systems · Mathematics 2025-06-24 Jie Cao , Xiaoguang Wang , Yongcheng Yin

This survey synthesizes the principal descriptive set-theoretic perspectives on deterministic Cantor sets on the real line and charts directions for future study. After recounting their historical genesis and compiling an up-to-date…

Classical Analysis and ODEs · Mathematics 2026-05-01 Mohsen Soltanifar

In this paper we provide solutions of the Harrington problem (along with a few generalizations) proposed in a book Analytic Sets. The original problem asks if for arbitrary sequence of continuous functions from \( \R^\omega \) to a fixed…

Logic · Mathematics 2023-05-19 Sławomir Kusiński

Shifts of finite type and the notion of shadowing, or pseudo-orbit tracing, are powerful tools in the study of dynamical systems. In this paper we prove that there is a deep and fundamental relationship between these two concepts. Let $X$…

Dynamical Systems · Mathematics 2017-02-20 Chris Good , Jonathan Meddaugh

A subset of the Cantor cube is null-additive if its algebraic sum with any null set is null. We construct a set of cardinality continuum such that: all continuous images of the set into the Cantor cube are null-additive, it contains a…

General Topology · Mathematics 2021-07-08 Piotr Szewczak , Tomasz Weiss

Let f be a rational function such that the multipliers of all repelling periodic points are real. We prove that the Julia set of such a function belongs to a circle. Combining this with a result of Fatou we conclude that whenever J(f)…

Dynamical Systems · Mathematics 2012-02-07 Alexandre Eremenko , Sebastian van Strien

In this work we consider a class of endomorphisms of $\mathbb{R}^2$ defined by $f(x,y)=(xy+c,x)$, where $c\in\mathbb{R}$ is a real number and we prove that when $-1<c<0$, the forward filled Julia set of $f$ is the union of stable manifolds…

Dynamical Systems · Mathematics 2019-09-02 Danilo Antonio Caprio

In this paper the concept of $\mathbb{F}$-functorial of a finite group was introduced. These functorials have many properties of the Fitting subgroup of a soluble group and the generalized Fitting subgroup of a finite group. It was shown…

Group Theory · Mathematics 2021-03-25 Viachaslau I. Murashka , Alexander F. Vasil'ev