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We give a brief review of holomorphic motions and its relation with quasiconformal mapping theory. Furthermore, we apply the holomorphic motions to give new proofs of famous Konig's Theorem and Bottcher's Theorem in classical complex…

Dynamical Systems · Mathematics 2020-06-02 Yunping Jiang

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

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

We prove a Julia inequality for bounded non-commutative functions on polynomial polyhedra. We use this to deduce a Julia inequality for holomorphic functions on classical domains in $\mathbb{C}^d$. We look at differentiability at a boundary…

Complex Variables · Mathematics 2017-08-22 John E. McCarthy , James E. Pascoe

Let L be a bounded distributive lattice. We give several characterizations of those L^n --> L mappings that are polynomial functions, i.e., functions which can be obtained from projections and constant functions using binary joins and…

Rings and Algebras · Mathematics 2012-02-20 Miguel Couceiro , Jean-Luc Marichal

In this paper we obtain several extensions to the quaternionic setting of some results concerning the approximation by polynomials of functions continuous on a compact set and holomorphic in its interior. The results include approximation…

Complex Variables · Mathematics 2023-07-19 Sorin G. Gal , Irene Sabadini

In holomorphic semigroup dynamics, Julia set is in general backward invariant and so some fundamental results of classical complex dynamics can not be generalized to semigroup dynamics. In this paper, we define completely invariant Julia…

Dynamical Systems · Mathematics 2018-04-11 Bishnu Hari Subedi , Ajaya Singh

The finite families of biorthogonal rational functions and orthogonal polynomials of Hahn type are interpreted algebraically in a unified way by considering the three-generated meta Hahn algebra and its finite-dimensional representations.…

Mathematical Physics · Physics 2025-09-10 Satoshi Tsujimoto , Luc Vinet , Alexei Zhedanov

In this article we address the following question, whose interest was recently renewed by problems arising in arithmetic dynamics: under which conditions does there exist a local biholomorphism between the Julia sets of two given…

Dynamical Systems · Mathematics 2022-01-12 Romain Dujardin , Charles Favre , Thomas Gauthier

In this paper, we are concerned with the bicomplex analog of the well-known result asserting that real-valued harmonic functions, on simply connected domains, are the real parts of holomorphic functions. We show that this assertion, word…

Complex Variables · Mathematics 2022-03-15 Aiad El Gourari , Allal Ghanmi , Ilham Rouchdi

The probability content of a convex polyhedron with a multivariate normal distribution can be regarded as a real analytic function. We give a system of linear partial differential equations with polynomial coefficients for the function and…

Classical Analysis and ODEs · Mathematics 2015-07-31 Tamio Koyama

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

In 1853 Sylvester introduced a family of double sum expressions for two finite sets of indeterminates and showed that some members of the family are essentially the polynomial subresultants of the monic polynomials associated with these…

Commutative Algebra · Mathematics 2008-03-27 Carlos D'Andrea , Hoon Hong , Teresa Krick , Agnes Szanto

We study the notion of tangent-like maps, which is a transcendental analogue of polynomial-like maps. We introduce a model family analogous to quadratic polynomials, with only one free asymptotic value, and define the "Tandelbrot set" as…

Dynamical Systems · Mathematics 2026-03-17 Astorg Matthieu , Benini Anna Miriam , Fagella Núria

We show that several families of polynomials defined via fillings of diagrams satisfy linear recurrences under a natural operation on the shape of the diagram. We focus on key polynomials, (also known as Demazure characters), and Demazure…

Combinatorics · Mathematics 2018-09-26 Per Alexandersson

Recently, the functional equation \[ \sum_{i=0}^mf_i(b_ix+c_iy)= \sum_{i=1}^na_i(y)v_i(x) \] with $x,y\in\mathbb{R}^d$ and $b_i,c_i\in\mathbf{GL}_d(\mathbb{C})$, was studied by Almira and Shulman, both in the classical context of continuous…

Classical Analysis and ODEs · Mathematics 2017-02-06 J. M. Almira

We construct holomorphically varying families of Fatou-Bieberbach domains with given centres in the complement of any compact polynomially convex subset $K$ of $\mathbb C^n$ for $n>1$. This provides a simple proof of the recent result of…

Complex Variables · Mathematics 2021-03-01 Franc Forstneric , Erlend Fornaess Wold

We consider the iteration of quasiregular maps of transcendental type from $\mathbb{R}^d$ to $\mathbb{R}^d$. In particular we study quasi-Fatou components, which are defined as the connected components of the complement of the Julia set.…

Dynamical Systems · Mathematics 2018-02-02 Daniel A. Nicks , David J. Sixsmith

For polynomials, local connectivity of Julia sets is a much-studied and important property. Indeed, when the Julia set of a polynomial of degree $d\geq 2$ is locally connected, the topological dynamics can be completely described as a…

Dynamical Systems · Mathematics 2024-12-10 Mashael Alhamed , Lasse Rempe , Dave Sixsmith

A unified algebraic interpretation of both finite families of orthogonal polynomials and biorthogonal rational functions of $q$-Hahn type is provided. The approach relies on the meta $q$-Hahn algebra and its finite-dimensional bidiagonal…

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