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Related papers: Semi-hyperbolic rational maps and size of Fatou co…

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Let $f:\hat{C}\to\hat{C}$ be a subhyperbolic rational map of degree $d$. We construct a set of coding maps $Cod(f)=\{\pi_r:\Sigma\to J\}_r$ of the Julia set $J$ by geometric coding trees, where the parameter $r$ ranges over mappings from a…

Dynamical Systems · Mathematics 2007-07-16 Atsushi Kameyama

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

We extend fundamental results concerning Apollonian packings, which constitute a major object of study in number theory, to certain homogeneous sets that arise naturally in complex dynamics and geometric group theory. In particular, we give…

Metric Geometry · Mathematics 2014-02-25 Sergei Merenkov , Maria Sabitova

The object of the paper is to characterize gasket Julia sets of rational maps that can be uniformized by round gaskets. We restrict to rational maps without critical points on the Julia set. Under these conditions, we prove that a Julia set…

Dynamical Systems · Mathematics 2024-11-27 Yusheng Luo , Dimitrios Ntalampekos

We study transcendental singularities of a Schr\"oder map arising from a rational function $f$, using results from complex dynamics and Nevanlinna theory. These maps are transcendental meromorphic functions of finite order in the complex…

Complex Variables · Mathematics 2015-05-21 David Drasin , Yûsuke Okuyama

We discuss the dynamic and structural properties of polynomial semigroups, a natural extension of iteration theory to random (walk) dynamics, where the semigroup $G$ of complex polynomials (under the operation of composition of functions)…

Dynamical Systems · Mathematics 2011-05-11 Rich Stankewitz , Hiroki Sumi

We study the family of renormalization transformations of the generalized $d$--dimensional diamond hierarchical Potts model in statistical mechanic and prove that their Julia sets and non-escaping loci are always connected, where $d\geq 2$.…

Dynamical Systems · Mathematics 2013-12-06 Fei Yang , Jinsong Zeng

In this paper, we prove that a postcritically finite rational map with non-empty Fatou set is Thurstion equivalent to an expanding Thurston map if and only if its Julia set is homeomorphic to the standard Sierpinski carpet

Dynamical Systems · Mathematics 2015-12-01 Yan Gao , Jinsong Zeng , Suo Zhao

For a hyperbolic polynomial automorphism of C^2 with a disconnected Julia set, and under a mild dissipativity condition, we give a topological description of the components of the Julia set. Namely, there are finitely many "quasi-solenoids"…

Dynamical Systems · Mathematics 2023-09-26 Romain Dujardin , Mikhail Lyubich

Suppose $X$ is a compact connected metric space and $f: X \to X$ is a metric coarse expanding conformal map in the sense of Ha\"issinsky-Pilgrim. We show that if $X$ contains a homeomorphic copy of the letter "Y", then the Hausdorff…

Metric Geometry · Mathematics 2022-09-22 Insung Park , Angela Wu

Let f be a dominant rational map of P^k such that there exists s <k, with lambda_s(f)>lambda_l(f) for all l. Under mild hypotheses, we show that, for A outside a pluripolar set of the group of automorphisms of P^k, the map f o A admits a…

Complex Variables · Mathematics 2014-04-10 Gabriel Vigny

We prove in this paper that the set of semi-hyperbolic rational maps has Lebesgue measure zero in the space of rational maps of the Riemann sphere for a fixed degree d at least 2. It generalises an earlier result by J. Graczyk and the…

Dynamical Systems · Mathematics 2016-05-23 Magnus Aspenberg

We show that Misiurewicz maps for which the Julia set is not the whole sphere are Lebesgue density points of hyperbolic maps.

Dynamical Systems · Mathematics 2009-06-29 Magnus Aspenberg

We consider the dynamics of rational semigroups (semigroups of rational maps) on the Riemann sphere. We estimate the Bowen parameters (zeros of the pressure functions) and the Hausdorff dimensions of the Julia sets of expanding finitely…

Dynamical Systems · Mathematics 2012-08-31 Hiroki Sumi , Mariusz Urbanski

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 study rational functions satisfying summability conditions - a family of weak conditions on the expansion along the critical orbits. Assuming their appropriate versions, we derive many nice properties: There exists a unique, ergodic, and…

Dynamical Systems · Mathematics 2008-10-15 Jacek Graczyk , Stanislav Smirnov

There are two natural definitions of the Julia set for complex H\'enon maps: the sets $J$ and $J^\star$. Whether these two sets are always equal is one of the main open questions in the field. We prove equality when the map acts…

Complex Variables · Mathematics 2017-09-08 Lorenzo Guerini , Han Peters

We prove the existence of rational maps having smooth degenerate Herman rings. This answers a question of Eremenko affirmatively. The proof is based on the construction of smooth Siegel disks by Avila, Buff and Ch\'{e}ritat as well as the…

Dynamical Systems · Mathematics 2023-11-03 Fei Yang

For any integers $d\ge 3$ and $n\ge 1$, we construct a hyperbolic rational map of degree $d$ such that it has $n$ cycles of the connected components of its Julia set except single points and Jordan curves.

Dynamical Systems · Mathematics 2020-07-08 Guizhen Cui , Wenjuan Peng

A definition of hyperbolic meromorphic functions is given and then we discuss the dynamical behavior and the thermodynamic formalism of hyperbolic functions on the Julia set. We prove the important expanding properties for hyperbolic…

Complex Variables · Mathematics 2012-09-11 Zheng Jian-Hua