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In this paper, we give a family of rational maps whose Julia sets are Cantor circles and show that every rational map whose Julia set is a Cantor set of circles must be topologically conjugate to one map in this family on their…

Dynamical Systems · Mathematics 2019-02-20 Weiyuan Qiu , Fei Yang , Yongcheng Yin

Let $f:\hat{\mathbb C}\to\hat{\mathbb C}$ be a hyperbolic rational map of degree $d\ge2$ on the Riemann sphere. We give several conditions which are equivalent to the condition for the Julia set $J_f$ to be a Cantor set. It has been known…

Dynamical Systems · Mathematics 2020-09-09 Atsushi Kameyama

We prove that for meromorphic maps with logarithmic tracts (e.g. entire or meromorphic maps with a finite number of poles from class $\mathcal B$), the Julia set contains a compact invariant hyperbolic Cantor set of Hausdorff dimension…

Dynamical Systems · Mathematics 2011-05-26 Krzysztof Barański , Bogusława Karpińska , Anna Zdunik

It has been shown that Cantor bubble Julia sets can appear in the dynamics of polynomials and their singular perturbations. In this paper, we present a criterion that guarantees the existence of Cantor bubble Julia sets for certain rational…

Dynamical Systems · Mathematics 2026-04-23 Xiaole He , Yingqing Xiao , Fei Yang

This article discusses some topological properties of the dynamical plane ($z$-plane) of the holomorphic family of meromorphic maps $\lambda + \tan z^2$ for $ \lambda \in \mathbb C$. In the dynamical plane, we prove that there is no Herman…

Dynamical Systems · Mathematics 2022-04-04 Santanu Nandi

Adopting the approach of [7] we study rational function carrying invariant line fields on the Julia set. In particular, we show that under certain weak conditions all possible measurable invariant line fields of a rational function on its…

Dynamical Systems · Mathematics 2024-08-28 Genadi Levin

We give three families of parabolic rational maps and show that every Cantor set of circles as the Julia set of a non-hyperbolic rational map must be quasisymmetrically equivalent to the Julia set of one map in these families for suitable…

Dynamical Systems · Mathematics 2015-10-13 Weiyuan Qiu , Fei Yang , Yongcheng Yin

It is well-known that the Julia set of a hyperbolic rational map is quasisymmetrically equivalent to the standard Cantor set. Using the uniformization theorem of David and Semmes, this result comes down to the fact that such a Julia set is…

Dynamical Systems · Mathematics 2020-10-27 Alastair N. Fletcher , Vyron Vellis

The no invariant line fields conjecture is one of the main outstanding problems in traditional complex dynamics. In this paper we consider non-autonomous iteration where one works with compositions of sequences of polynomials with suitable…

Dynamical Systems · Mathematics 2011-05-24 Mark Comerford

It is known that the disconnected Julia set of any polynomial map does not contain buried Julia components. But such Julia components may arise for rational maps. The first example is due to Curtis T. McMullen who provided a family of…

Dynamical Systems · Mathematics 2015-08-05 Sébastien Godillon

We consider the structure of substantially dissipative complex H\'enon maps admitting a dominated splitting on the Julia set. The dominated splitting assumption corresponds to the one-dimensional assumption that there are no critical points…

Dynamical Systems · Mathematics 2017-12-19 Misha Lyubich , Han Peters

This article discusses some topological properties of the dynamical plane ($z$-plane) of the holomorphic family of meromorphic maps $\lambda \tan z^2$ for $ \lambda \in \mathbb C^*$. In the dynamical plane, I prove that there is no Herman…

Dynamical Systems · Mathematics 2023-07-06 Santanu Nandi

Let $f$ be a rational map with an infinitely-connected fixed parabolic Fatou domain $U$. We prove that there exists a rational map $g$ with a completely invariant parabolic Fatou domain $V$, such that $(f,U)$ and $(g,V)$ are conformally…

Dynamical Systems · Mathematics 2025-09-15 Ning Gao , Yan Gao , Wenjuan Peng

In this note, we give an elementary proof of the absence of invariant line fields on the conical Julia set of an analytic function of one variable. This proof applies not only to rational as well as transcendental meromorphic functions…

Dynamical Systems · Mathematics 2015-05-21 Volker Mayer , Lasse Rempe

Non-renormalizable Newton maps are rigid. More precisely, we prove that their Julia set carries no invariant line fields and that the topological conjugacy is equivalent to quasi-conformal conjugacy in this case.

Dynamical Systems · Mathematics 2023-08-28 Pascale Roesch , Yongcheng Yin , Jinsong Zeng

We give explicit examples of pairs of Julia sets of hyperbolic rational maps which are homeomorphic but not quasisymmetrically homeomorphic.

Dynamical Systems · Mathematics 2013-02-11 Peter Haissinsky , Kevin M. Pilgrim

Let $f:\widehat{\mathbb{C}}\rightarrow \widehat{\mathbb{C}}$ be a hyperbolic rational map of degree $d \geq 2$, and let $J \subset \mathbb{C}$ be its Julia set. We prove that $J$ always has positive Fourier dimension. The case where $J$ is…

Dynamical Systems · Mathematics 2022-09-21 Gaétan Leclerc

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

Let f be an infinitely-renormalizable quadratic polynomial and J_\infty be the intersection of forward orbits of "small" Julia sets of simple renormalizations of f. We prove that J_\infty contains no hyperbolic sets.

Dynamical Systems · Mathematics 2022-06-22 Genadi Levin , Feliks Przytycki

We prove that every wandering exposed Julia component of a rational map is to a singleton, provided that each wandering Julia component containing critical points is non-recurrent. Moreover, we show that the Julia set contains only finitely…

Dynamical Systems · Mathematics 2025-09-09 Yan Gao , Lele Xu , Luxian Yang
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