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Related papers: Baker's conjecture for functions with real zeros

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Let $f$ be Fatou's function, that is, $f(z)= z+1+e^{-z}$. We prove that the escaping set of $f$ has the structure of a `spider's web' and we show that this result implies that the non-escaping endpoints of the Julia set of $f$ together with…

Dynamical Systems · Mathematics 2015-10-27 Vasiliki Evdoridou

Let f be an entire function with a bounded set of singular values, and suppose furthermore that the postsingular set of f is bounded. We show that every component of the escaping set I(f) is unbounded. This provides a partial answer to a…

Dynamical Systems · Mathematics 2007-12-11 Lasse Rempe

We discuss the dynamics of semigroups of transcendental entire functions using Fatou-Julia theory and provide a condition for the complete invariance of escaping set and Julia set of transcendental semigroups. Results regarding limit…

Dynamical Systems · Mathematics 2016-03-16 Dinesh Kumar , Sanjay Kumar , Kin Keung Poon

We classify transcendental entire functions that are compositions of a polynomial and the exponential for which all singular values escape on disjoint rays. The construction involves an iteration procedure on an infinite-dimensional…

Dynamical Systems · Mathematics 2025-07-29 Konstantin Bogdanov

Let $f$ be a transcendental entire function and let $A(f)$ denote the set of points that escape to infinity `as fast as possible' under iteration. By writing $A(f)$ as a countable union of closed sets, called `levels' of $A(f)$, we obtain a…

Complex Variables · Mathematics 2014-02-26 P. J. Rippon , G. M. Stallard

Much recent work on the iterates of a transcendental entire function $f$ has been motivated by Eremenko's conjecture that all the components of the escaping set $I(f)$ are unbounded. Here we show that if $I(f)$ is disconnected, then the set…

Dynamical Systems · Mathematics 2017-04-03 Philip Rippon , Gwyneth Stallard

Given commuting functions f,g, with at most a countable compact set of essential singularities, recent results for entire functions are extended to prove that Julia sets match, J(f)=J(g), in a particular case in the class K. With this…

Dynamical Systems · Mathematics 2021-09-21 Adrián Esparza-Amador

We study a family of transcendental entire functions of genus zero, for which all of the zeros lie within a closed sector strictly smaller than a half-plane. In general these functions lie outside the Eremenko-Lyubich class. We show that…

Complex Variables · Mathematics 2016-01-26 D. J. Sixsmith

In this article, we give a proof for that the cardinality of a function basis of the invariants for a finite dimensional real vector space by a compact group is lower bounded by the intuitive difference of the dimensions of the vector space…

Algebraic Geometry · Mathematics 2018-08-06 Shenglong Hu , Liqun Qi

We present a one-parameter family $F_\lambda$ of transcendental entire functions with zeros, whose Newton's method yields wandering domains, coexisting with the basins of the roots of $F_\lambda$. Wandering domains for Newton maps of…

Dynamical Systems · Mathematics 2024-11-27 Robert Florido , Núria Fagella

We mainly generalize the notion of abelian transcendental semigroup to nearly abelian transcendental semigroup. We prove that Fatou set, Julia set and escaping set of nearly abelian transcendental semigroup are completely invariant. We…

Dynamical Systems · Mathematics 2018-08-03 Bishnu Hari Subedi , Ajaya Singh

We obtain sufficient conditions for an exponential type entire function not to have zeros in the open lower half-plane. An exact inequality containing the real and imaginary parts of such functions and their derivatives restricted to the…

Classical Analysis and ODEs · Mathematics 2016-06-28 Viktor P. Zastavnyi

We show a partial generalization of Sullivan's non-wandering domain theorem in complex dimension two. More precisely, we show the non-existence of wandering Fatou components for polynomial skew products of $ \mathbb{C}^2$ with an invariant…

Dynamical Systems · Mathematics 2020-10-14 Zhuchao Ji

We prove Polya's conjecture of 1943: For a real entire function of order greater than 2, with finitely many non-real zeros, the number of non-real zeros of the n-th derivative tends to infinity with n. We use the saddle point method and…

Complex Variables · Mathematics 2018-01-08 Walter Bergweiler , Alexandre Eremenko

We investigate some connectedness properties of the set of points K(f) where the iterates of an entire function f are bounded. In particular, we describe a class of transcendental entire functions for which an analogue of the…

Dynamical Systems · Mathematics 2015-06-11 John Osborne

Let f be a transcendental entire function that omits a complex value a. We show that for every simply connected region D that does not contain a the full preimage of D is disconnected. We conjecture that the same holds if one only assumes…

Complex Variables · Mathematics 2009-06-30 Walter Bergweiler , Alexandre Eremenko

The dynamical behaviour of a transcendental entire function in any periodic component of the Fatou set is well understood. Here we study the dynamical behaviour of a transcendental entire function $f$ in any multiply connected wandering…

Complex Variables · Mathematics 2014-04-08 Walter Bergweiler , Philip J. Rippon , Gwyneth M. Stallard

For a transcendental entire function $f$, the property that there exists $r>0$ such that $m^n(r)\to\infty$ as $n\to\infty$, where $m(r)=\min \{|f(z)|:|z|=r\}$, is related to conjectures of Eremenko and of Baker, for both of which order…

Complex Variables · Mathematics 2021-02-04 Daniel A. Nicks , Philip J. Rippon , Gwyneth M. Stallard

In this paper we affirm Br\"{u}ck conjecture provided $f$ is of hyper-order less than one by studying the infinite hyper-order of solutions of a complex differential equation.

Complex Variables · Mathematics 2017-05-26 Guowei Zhang

A major open question in transcendental dynamics asks if it is possible for points in a wandering domain to have bounded orbits, and more strongly, for a wandering domain to iterate only in a bounded domain. In this paper we give a partial…

Dynamical Systems · Mathematics 2023-08-01 Leticia Pardo-Simón , David J. Sixsmith