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Let $f$ be a holomorphic endomorphism of $\mathbb{C}\mathbb{P}^k$ of algebraic degree at least $2$ and let $X \subseteq \mathbb{C}\mathbb{P}^k$ be an uniformly expanding set. In this paper, we study multifractal analysis of equilibrium…

Dynamical Systems · Mathematics 2025-12-10 Nathan Dalaklis , Yan Mary He

In this paper we continue the study of non-diagonalisable hyperbolic systems with variable multiplicity started by the authors in \cite{Garetto2018}. In the case of space dependent coefficients, we prove a representation formula for…

Analysis of PDEs · Mathematics 2020-01-15 Claudia Garetto , Christian Jäh , Michael Ruzhansky

We develop a quenched thermodynamic formalism for a wide class of random maps with non-uniform expansion, where no Markov structure, no uniformly bounded degree or the existence of some expanding dynamics is required. We prove that every…

Dynamical Systems · Mathematics 2024-04-19 Manuel Stadlbauer , Shintaro Suzuki , Paulo Varandas

We develop the convex-analytic structure of the thermodynamic formalism for continuous maps on compact metric spaces. The pressure functional is the Legendre-Fenchel transform of the negative entropy, and the biconjugate recovery of the…

Dynamical Systems · Mathematics 2026-04-27 Abdoulaye Thiam

This Part develops structural consequences of the thermodynamic formalism for Axiom A diffeomorphisms. The Pesin Entropy Formula equates the metric entropy of the SRB measure to the sum of positive Lyapunov exponents, with complete proofs…

Dynamical Systems · Mathematics 2026-04-28 Abdoulaye Thiam

We study the mixing properties of a class of nonuniformly expanding maps when the return time to the basis has a weak moment of order p >1, up to a slowly varying function. From these computations, we deduce an invariance principle in…

Dynamical Systems · Mathematics 2025-07-21 Aurélie Bigot , V Alouin

This paper is aimed at a detailed study of the multifractal analysis of the so-called divergence points in the system of $\beta$-expansions. More precisely, let $([0,1),T_{\beta})$ be the $\beta$-dynamical system for a general $\beta>1$ and…

Dynamical Systems · Mathematics 2016-01-01 Yuanhong Chen , Zhenliang Zhang , Xiaojun Zhao

In this article we prove estimates for the topological pressure of the set of points whose Birkhoff time averages are far from the space averages corresponding to the unique equilibrium state that has a weak Gibbs property. In particular,…

Dynamical Systems · Mathematics 2015-10-21 Thiago Bomfim , Paulo Varandas

This work constructs symbolic dynamics for non-uniformly hyperbolic surface maps with a set of discontinuities $D$. We allow the derivative of points nearby $D$ to be unbounded, of the order of a negative power of the distance to $D$. Under…

Dynamical Systems · Mathematics 2020-04-21 Yuri Lima , Carlos Matheus

This paper is devoted to the study of the thermodynamic formalism for a class of real multimodal maps. This class contains, but it is larger than, Collet-Eckmann. For a map in this class, we prove existence and uniqueness of equilibrium…

Dynamical Systems · Mathematics 2015-05-13 Godofredo Iommi , Mike Todd

We study an intermittent quasistatic dynamical system composed of nonuniformly hyperbolic Pomeau--Manneville maps with time-dependent parameters. We prove an ergodic theorem which shows almost sure convergence of time averages in a certain…

Dynamical Systems · Mathematics 2016-06-22 Juho Leppänen , Mikko Stenlund

We construct a smooth nontrivial mixed partially hyperbolic system and explicitly identify its skeleton. This example shares characteristics with the classical examples. Moreover, the support of each physical measure contains three fixed…

Dynamical Systems · Mathematics 2026-01-01 Zhang Hangyue

In this paper, we study the topological spectrum of weighted Birkhoff averages over aperiodic and irreducible subshifts of finite type. We show that for a uniformly continuous family of potentials, the spectrum is continuous and concave…

Dynamical Systems · Mathematics 2021-09-15 Balázs Bárány , Michał Rams , Ruxi Shi

We prove an almost sure invariance principle that is valid for general classes of nonuniformly expanding and nonuniformly hyperbolic dynamical systems. Discrete time systems and flows are covered by this result. In particular, the result…

Dynamical Systems · Mathematics 2014-12-09 Ian Melbourne , Matthew Nicol

We prove that entropy map is upper semi-continuous for C1 nonuniformly hyperbolic systems with domination, while it is not true for C1+alpha nonuniformly hyperbolic systems in general. This goes a little against a common intuition that…

Dynamical Systems · Mathematics 2014-07-31 Gang Liao , Wenxiang Sun , Shirou Wang

Often topological classes of one-dimensional dynamical systems are finite codimension smooth manifolds. We describe a method to prove this sort of statement that we believe can be applied in many settings. In this work we will implement it…

Dynamical Systems · Mathematics 2021-04-13 Clodoaldo Grotta-Ragazzo , Daniel Smania

We consider implications of dynamical Borel-Cantelli lemmas for rates of growth of Birkhoff sums of non-integrable observables $\varphi(x) = d(x,p)^{-k}$, $k>0$, on ergodic dynamical systems $(T,X,\mu)$ where $\mu(X) = 1$. Some general…

Dynamical Systems · Mathematics 2017-06-28 Meagan Carney , Matthew Nicol

We prove a random Ruelle--Perron--Frobenius theorem and the existence of relative equilibrium states for a class of random open and closed interval maps, without imposing transitivity requirements, such as mixing and covering conditions,…

Dynamical Systems · Mathematics 2023-08-23 Jason Atnip , Gary Froyland , Cecilia González-Tokman , Sandro Vaienti

We prove statistical limit laws for sequences of Birkhoff sums of the type $\sum_{j=0}^{n-1}v_n\circ T_n^j$ where $T_n$ is a family of nonuniformly hyperbolic transformations. The key ingredient is a new martingale-coboundary decomposition…

Dynamical Systems · Mathematics 2018-05-09 A. Korepanov , Z. Kosloff , I. Melbourne

We consider some general classes of random dynamical systems and show that a priori very weak nonuniform hyperbolicity conditions actually imply uniform hyperbolicity.

Dynamical Systems · Mathematics 2007-09-11 Yongluo Cao , Stefano Luzzatto , Isabel Rios