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We study the parameter space structure of degree $d \ge 3$ one complex variable polynomials as dynamical systems acting on $\C$. We introduce and study {\it straightening maps}. These maps are a natural higher degree generalization of the…

Dynamical Systems · Mathematics 2012-06-26 Hiroyuki Inou , Jan Kiwi

In this paper we present local Sternberg conjugation theorems near attracting fixed points for lattice systems. The interactions are spatially decaying and are not restricted to finite distance. The conjugations obtained retain the same…

Dynamical Systems · Mathematics 2021-02-24 Ruben Berenguel , Ernest Fontich

Milnor proved that the moduli space ${\rm M}_{d}$ of rational maps of degree $d \geq 2$ has a complex orbifold structure of dimension $2(d-1)$. Let us denote by ${\mathcal S}_{d}$ the singular locus of ${\rm M}_{d}$ and by ${\mathcal…

Dynamical Systems · Mathematics 2015-06-10 Ruben A. Hidalgo , Saul Quispe

In this paper we prove the existence and uniqueness of matings of the basilica with any quadratic polynomial which lies outside of the 1/2-limb of M, is non-renormalizable, and does not have any non-repelling periodic orbits.

Dynamical Systems · Mathematics 2009-03-25 Magnus Aspenberg , Michael Yampolsky

We describe a primary limb structure in the connectedness locus of complex cubic polynomials, where the limbs are indexed by the periodic points of the doubling map $t \mapsto 2t \ (\operatorname{mod} {\mathbb Z})$. The main renormalization…

Dynamical Systems · Mathematics 2025-09-18 Carsten Lunde Petersen , Saeed Zakeri

We study the space of "link maps": the space of maps of a disjoint union of compact, closed manifolds P_1, . . ., P_k into a manifold N whose images are pairwise disjoint. We apply the manifold calculus of functors developed by Goodwillie…

Algebraic Topology · Mathematics 2014-10-01 Brian Munson

In this paper, we study a geometric counterpart of the cyclic vector which allow us to put a rank 2 meromorphic connection on a curve into a ``companion'' normal form. This allow us to naturally identify an open set of the moduli space of…

Algebraic Geometry · Mathematics 2023-09-19 Arata Komyo , Frank Loray , Masa-Hiko Saito , Szilard Szabo

We develop dynamical theory for the family of holomorphic correspondences $\mathcal{F}_a$ proved by the current authors to be matings between the modular group and parabolic rational maps in the Milnor slice $Per_1(1)$ (in 'Mating quadratic…

Dynamical Systems · Mathematics 2022-11-14 Shaun Bullett , Luna Lomonaco

We give new proofs that the Mandelbrot set is locally connected at every Misiurewicz point and at every point on the boundary of a hyperbolic component. The idea is to show ``shrinking of puzzle pieces'' without using specific puzzles.…

Dynamical Systems · Mathematics 2007-08-21 Dierk Schleicher

We consider all compatible topologies of an arbitrary finite-dimensional vector space over a non-trivial valuation field whose metric completion is a locally compact space. We construct the canonical lattice isomorphism between the lattice…

General Topology · Mathematics 2023-12-01 Takanobu Aoyama

We study asymptotic dynamics in networks of coupled quadratic nodes. While single map complex quadratic iterations have been studied over the past century, considering ensembles of such functions, organized as coupled nodes in a network,…

Dynamical Systems · Mathematics 2017-12-19 Anca Radulescu , Simone Evans

We suggest an approach to constructing physical systems with dynamical characteristics of the complex analytic iterative maps. The idea follows from a simple notion that the complex quadratic map by a variable change may be transformed into…

Chaotic Dynamics · Physics 2009-11-07 O. B. Isaeva , S. P. Kuznetsov , V. I. Ponomarenko

To investigate the degree $d$ connectedness locus, Thurston studied \emph{$\sigma_d$-invariant laminations}, where $\sigma_d$ is the $d$-tupling map on the unit circle, and built a topological model for the space of quadratic polynomials…

The so-called "pinched disk" model of the Mandelbrot set is due to A.~Douady, J.~H.~Hubbard and W.~P.~Thurston. It can be described in the language of geodesic laminations. The combinatorial model is the quotient space of the unit disk…

Dynamical Systems · Mathematics 2017-05-31 Alexander Blokh , Lex Oversteegen , Ross Ptacek , Vladlen Timorin

We prove that there exists a homeomorphism $\chi$ between the connectedness locus $\mathcal{M}_{\Gamma}$ for the family $\mathcal{F}_a$ of $(2:2)$ holomorphic correspondences introduced by Bullett and Penrose, and the parabolic Mandelbrot…

Dynamical Systems · Mathematics 2023-05-02 Shaun Bullett , Luna Lomonaco

We prove local connectivity of the boundaries of invariant simply connected attracting basins for a class of transcendental meromorphic maps. The maps within this class need not be geometrically finite or in class $\mathcal B$, and the…

Dynamical Systems · Mathematics 2024-06-14 Krzystof Barański , Núria Fagella , Xavier Jarque , Bogusława Karpińska

For a rational function $R$, let $N_R(z)=z-\frac{R(z)}{R'(z)}.$ Any such $N_R$ is referred to as a Newton map. We determine all the rational functions $R$ for which $N_R$ has exactly two attracting fixed points, one of which is an…

Dynamical Systems · Mathematics 2026-02-05 Tarakanta Nayak , Soumen Pal , Pooja Phogat

This will is an expository description of quadratic rational maps. Sections 2 through 6 are concerned with the geometry and topology of such maps. Sections 7--10 survey of some topics from the dynamics of quadratic rational maps. There are…

Dynamical Systems · Mathematics 2016-09-06 John W. Milnor

We develop an abstract model for the dynamics of an exponential map $z\mapsto \exp(z)+\kappa$ on its set of escaping points and, as an analog of Boettcher's theorem for polynomials, show that every exponential map is conjugate, on a…

Dynamical Systems · Mathematics 2007-10-28 Lasse Rempe

We study the connectedness locus $\mathcal{N}$ for the family of iterated function systems of pairs of homogeneous affine-linear maps in the plane. We prove this set is regular closed (i.e., it is the closure of its interior) away from the…

Dynamical Systems · Mathematics 2025-01-17 Omer Rosler