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We consider complex polynomials $f(z) = z^\ell+c_1$ for $\ell \in 2\N$ and $c_1 \in \R$, and find some combinatorial types and values of $\ell$ such that there is no invariant probability measure equivalent to conformal measure on the Julia…

Dynamical Systems · Mathematics 2009-11-11 Henk Bruin , Mike Todd

We prove a special case of a dynamical analogue of the classical Mordell-Lang conjecture. In particular, let $\phi$ be a rational function with no superattracting periodic points other than exceptional points. If the coefficients of $\phi$…

Number Theory · Mathematics 2009-02-06 Robert L. Benedetto , Dragos Ghioca , Par Kurlberg , Thomas J. Tucker

We describe a model $\mathcal{M}_3^{comb}$ for the boundary of the connectedness locus $\mathcal{M}^{sy}_3$ of the parameter space of cubic symmetric polynomials $p_c(z)=z^3-3c^2z$. We show that there exists a monotone continuous function…

Dynamical Systems · Mathematics 2023-05-16 A. Blokh , L. Oversteegen , N. Selinger , V. Timorin , S. Vejandla

The first goal of this paper is to provide an abstract framework in which to formulate and study local duality in various algebraic and topological contexts. For any stable $\infty$-category $\mathcal{C}$ together with a collection of…

Algebraic Topology · Mathematics 2019-01-23 Tobias Barthel , Drew Heard , Gabriel Valenzuela

A homomorphism from a graph G to a graph H is locally bijective, surjective, or injective if its restriction to the neighborhood of every vertex of G is bijective, surjective, or injective, respectively. We prove that the problems of…

Computational Complexity · Computer Science 2015-10-07 Steven Chaplick , Jiří Fiala , Pim van 't Hof , Daniël Paulusma , Marek Tesař

For polynomials and rational maps of fixed degree over a finite field, we bound both the average number of connected components of their functional graphs as well as the average number of periodic points of their associated dynamical…

Dynamical Systems · Mathematics 2014-07-01 Ryan Flynn , Derek Garton

A linear connection on a Lie algebroid is called a Cartan connection if it is suitably compatible with the Lie algebroid structure. Here we show that a smooth connected manifold $M$ is locally homogeneous - i.e., admits an atlas of charts…

Differential Geometry · Mathematics 2013-11-27 Anthony D. Blaom

We investigate the dynamics of semigroups generated by polynomial maps on the Riemann sphere such that the postcritical set in the complex plane is bounded. Moreover, we investigate the associated random dynamics of polynomials.…

Dynamical Systems · Mathematics 2014-02-26 Hiroki Sumi

Given a $d$-dimensional torus map $F(z)=Mz+G(z)\bmod 1$, where $M$ is an integer-matrix and and $G$ is a periodic function, we find conditions on $M$ under which $F$ is semi-conjugate to a linear torus map, independently of $G$. We also…

Dynamical Systems · Mathematics 2018-01-31 Suddhasattwa Das , James Yorke

We derive extensions of the monomialization theorems for morphisms of varieties in our earlier work. In this note we show that a local monomialization can be found which satisfies stronger local conditions. Some comments are made about how…

Algebraic Geometry · Mathematics 2016-12-05 Steven Dale Cutkosky

Let $M$ be a model set meeting two simple conditions: (1) the internal space $H$ is a product of $R^n$ and a finite group, and (2) the window $W$ is a finite union of disjoint polyhedra. Then any point pattern with finite local complexity…

Dynamical Systems · Mathematics 2018-07-10 Johannes Kellendonk , Lorenzo Sadun

We consider the harmonic measure on a disconnected polynomial Julia set in terms of Brownian motion. We show that the harmonic measure of any connected component of such a Julia set is zero. Associated to the polynomial is a combinatorial…

Dynamical Systems · Mathematics 2007-05-23 Nathaniel D. Emerson

This paper is devoted to study a characterization of (strong) local maximal monotonicity in terms of a property involving the graphical derivative of a set-valued mapping defined on a Hilbert space. As a consequence, a second-order…

Optimization and Control · Mathematics 2025-08-29 Juan Guillermo Garrido

It is shown that there is a computable conformal map of the unit disk onto a domain $D$ that has a computable extension to the closure of the unit disk even though the boundary of $D$ is not effectively locally connected. The proof encodes…

Complex Variables · Mathematics 2014-03-21 T. H. McNicholl

We investigate the plane dynamical system given by the secant map applied to a polynomial $p$ having at least one multiple root of multiplicity $d>1$. We prove that the local dynamics around the fixed points associated to the roots of $p$…

Dynamical Systems · Mathematics 2019-07-23 Antonio Garijo , Xavier Jarque

A theorem of Ritt states the a linearizer of a holomorphic function at a repelling fixed point is periodic only if the holomorphic map is conjugate to a power of $z$, a Chebyshev polynomial or a Latt\`es map. The converse, except for some…

Dynamical Systems · Mathematics 2018-09-11 Alastair Fletcher , Doug Macclure

In homotopy type theory we can define the join of maps as a binary operation on maps with a common co-domain. This operation is commutative, associative, and the unique map from the empty type into the common codomain is a neutral element.…

Category Theory · Mathematics 2017-01-27 Egbert Rijke

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

The goal of this article is to study a rigidity property of Julia sets of certain classes of automorphisms in $\mathbb{C}^k$, $k \ge 3.$ First, we study the relation between two polynomial shift-like maps in $\mathbb{C}^k$, $k \ge 3$, that…

Complex Variables · Mathematics 2019-03-06 Sayani Bera , Ratna Pal

We study numerically the $\alpha$- and $\omega$-limits of the Newton maps of two of the most elementary families of polynomial transformations on the plane: those with a linear component and those with both components of degree two. Our…

Dynamical Systems · Mathematics 2019-02-19 Roberto De Leo