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In this paper, we propose a novel, unified, general approach to investigate sufficient and necessary conditions under which four types of convex sets, polyhedra, polyhedral cones, ellipsoids and Lorenz cones, are invariant sets for a linear…

Dynamical Systems · Mathematics 2016-07-06 Zoltán Horváth , Yunfei Song , Tamás Terlaky

The goal of this survey is to present intimate interactions between four branches of conformal dynamics: iterations of anti-rational maps, actions of Kleinian reflection groups, dynamics generated by Schwarz reflections in quadrature…

Dynamical Systems · Mathematics 2026-05-27 Mikhail Lyubich , Sabyasachi Mukherjee

We consider the multifractal formalism for the dynamics of semigroups of rational maps on the Riemann sphere and random complex dynamical systems. We elaborate a multifractal analysis of level sets given by quotients of Birkhoff sums with…

Dynamical Systems · Mathematics 2015-07-14 Johannes Jaerisch , Hiroki Sumi

We introduce tessellation of the filled Julia sets for hyperbolic and parabolic quadratic maps. Then the dynamics inside their Julia sets are organized by tiles which work like external rays outside. We also construct continuous families of…

Dynamical Systems · Mathematics 2024-01-03 Tomoki Kawahira

In the early 1980's Thurston gave a topological characterization of rational maps whose critical points have finite iterated orbits (\cite{Th,DH1}): given a topological branched covering $F$ of the two sphere with finite critical orbits, if…

Dynamical Systems · Mathematics 2014-07-15 Cui Guizhen , Tan Lei

Uhlenbeck proved that a set of simple elements generates the group of rational loops in GL(n,C) that satisfy the U(n)-reality condition. For an arbitrary complex reductive group, a choice of representation defines a notion of rationality…

Differential Geometry · Mathematics 2008-03-04 Neil Donaldson , Daniel Fox , Oliver Goertsches

This is a commentary on Teichm{\"u}ller's paper Unter-suchungen{\"u}ber konforme und quasikonforme Abbildungen (Inves-tigations on conformal and quasiconformal mappings) published in 1938. The paper contains fundamental results in conformal…

Complex Variables · Mathematics 2019-12-25 Vincent Alberge , Melkana Brakalova-Trevithick , Athanase Papadopoulos

In this paper we investigate the perturbation properties of rational Misiurewicz maps, when the Julia set is the whole sphere (the other case is treated in [1]). In particular, we show that if f is a Misiurewicz map and not a flexible…

Dynamical Systems · Mathematics 2009-06-23 Magnus Aspenberg

In this paper, we present foundational material towards the development of a rigorous enumerative theory of stable maps with Lagrangian boundary conditions, ie stable maps from bordered Riemann surfaces to a symplectic manifold, such that…

Algebraic Geometry · Mathematics 2009-03-13 Sheldon Katz , Chiu-Chu Melissa Liu

Stated lemma contains the assertions about isomorphism of exact m-forms and exterior differentials of regular m-maps, of linearly harmonic m-forms and exterior differentials of regular harmonic m-maps, of global minimal (n-m)-surfaces and…

General Mathematics · Mathematics 2007-05-23 I. V. Bayak

In this paper, the main focus is on the Sierpinski carpet Julia sets of the rational maps with non-recurrent critical points. We study the uniform quasicircle property of the peripheral circles, the relatively separated property of the…

Dynamical Systems · Mathematics 2018-03-01 Weiyuan Qiu , Fei Yang , Jinsong Zeng

Lawson-Osserman constructed three types of non-parametric minimal cones of high codimensions based on Hopf maps between spheres, which correspond to Lipschitz but non-differentiable solutions to the minimal surface equations, thereby making…

Differential Geometry · Mathematics 2017-04-10 Xiaowei Xu , Ling Yang , Yongsheng Zhang

Let k be an algebraically closed field of characteristic 0, let X=P^1\times A^N and let f be a rational endomorphism of X given by (x,y)--->(g(x), A(x)y), where g is a rational function, while A is an N-by-N matrix with entries in k(x). We…

Number Theory · Mathematics 2018-03-13 Dragos Ghioca , Junyi Xie , with an appendix written by Michael Wibmer

Few years ago Zamolodchikov and Zamolodchikov proposed an expression for the 4-point classical Liouville action in terms of the 3-point actions and the classical conformal block. In this paper we develop a method of calculating the…

High Energy Physics - Theory · Physics 2015-06-26 Leszek Hadasz , Zbigniew Jaskolski

We prove that the Julia set of a rational map of the Riemann sphere satisfying the Collet-Eckmann condition and having no parabolic periodic point is mean porous, if it is not the whole sphere. It follows that the Minkowski dimension of the…

Dynamical Systems · Mathematics 2009-09-25 Feliks Przytycki , Steffen Rohde

There are four variants of passive, linear time-invariant systems, described by rational functions: Continuous or Discrete time, Positive or Bounded real. By introducing a quadratic matrix inequality formulation, we present a unifying…

Optimization and Control · Mathematics 2021-02-03 I. Lewkowicz

We exhibit an explicit sufficient condition for the Lyapunov exponents of a linear cocycle over a Markov map to have multiplicity 1. This builds on work of Guivarc'h-Raugi and Gol'dsheid-Margulis, who considered products of random matrices,…

Dynamical Systems · Mathematics 2007-05-23 Artur Avila , Marcelo Viana

In holomorphic dynamics, complex box mappings arise as first return maps to well-chosen domains. They are a generalization of polynomial-like mapping, where the domain of the return map can have infinitely many components. They turned out…

Dynamical Systems · Mathematics 2022-02-28 Trevor Clark , Kostiantyn Drach , Oleg Kozlovski , Sebastian van Strien

In this manuscript, by using Belyi maps and dessin d'enfants, we construct some concrete examples of Strebel differentials with four double poles on the Riemann sphere. As an application, we could give some explicit cone spherical metrics…

Complex Variables · Mathematics 2020-05-15 Jijian Song , Bin Xu

A model for the Mandelbrot set is due to Thurston and is stated in the language of geodesic laminations. The conjecture that the Mandelbrot set is actually homeomorphic to this model is equivalent to the celebrated MLC conjecture stating…

Dynamical Systems · Mathematics 2015-03-03 Alexander Blokh , Lex Oversteegen , Ross Ptacek , Vladlen Timorin