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This paper introduces the concepts of correlation entropy and local correlation entropy for free semigroup actions on compact metric space, and explores their fundamental properties. Thereafter, we generalize some classical results on…

Dynamical Systems · Mathematics 2024-06-27 Xiaojiang Ye , Yanjie Tang , Dongkui Ma

In this paper, we introduce the notions of topological pressure and measure-theoretic entropy for a free semigroup action. Suppose that a free semigroup acts on a compact metric space by continuous self-maps. To this action, we assign a…

Dynamical Systems · Mathematics 2016-10-27 Xiaogang Lin , Dongkui Ma , Yupan Wang

In the present paper we study the thermodynamical properties of finitely generated continuous subgroup actions. We address a notion of topological entropy and pressure functions that does not depend on the growth rate of the semigroup and…

Dynamical Systems · Mathematics 2016-06-22 Fagner B. Rodrigues , Paulo Varandas

We consider semigroups of Ruelle-expanding maps, parameterized by random walks on the free semigroup, with the aim of examining their complexity and exploring the relation between intrinsic properties of the semigroup action and the…

Dynamical Systems · Mathematics 2017-02-01 Maria Carvalho , Fagner B. Rodrigues , Paulo Varandas

This paper's major purpose is to continue the work of Zhu and Ma[1]. To begin, the $\mathbf{g}$-almost product property, more general irregular and regular sets, and some new notions of the Banach upper density recurrent points and…

Dynamical Systems · Mathematics 2023-03-29 Yanjie Tang , Xiaojiang Ye , Dongkui Ma

We consider the existence of the topological entropy of shift spaces on a finitely generated semigroup whose Cayley graph is a tree. The considered semigroups include free groups. On the other hand, the notion of stem entropy is introduced.…

Dynamical Systems · Mathematics 2022-01-05 Jung-Chao Ban , Chih-Hung Chang , Yu-Liang Wu , Yu-Ying Wu

This paper is a survey about recent developments in the local entropy theory for topological dynamical systems and continuous group actions, with particular emphasis on the connections with other areas of dynamical systems and mathematics.

Dynamical Systems · Mathematics 2024-01-19 Felipe García-Ramos , Hanfeng Li

In this paper we introduce the definition of entropy for a partial $\mathbb{Z}$-action. We show that the definition of partial entropy is an extension of the definition of topological entropy for a $\mathbb Z$-action. We also prove that the…

Dynamical Systems · Mathematics 2021-07-30 A. Baraviera , Daniel Gonçalves , Danilo Royer , Ruy Exel , Fagner B. Rodrigues

The author proposes a method for investigating actions of finite groups on aspherical spaces. Complete homotopy classification of free actions of finite groups on aspherical spaces is obtained. Also there are some results about non-free…

General Topology · Mathematics 2010-09-01 Lev Lokutsievskiy

We prove that for a measure preserving action of a sofic group with positive sofic entropy, the set of points with finite stabilizer have positive measure. This extends results of Weiss and Seward for amenable groups and free groups,…

Dynamical Systems · Mathematics 2016-08-24 Tom Meyerovitch

Let $(X,\rho,G)$ be a $G-$action topological system, where $G$ is a countable infinite discrete amenable group and $X$ a compact metric space. We prove a variational principle for topological entropy of saturated sets for systems which have…

Dynamical Systems · Mathematics 2023-03-27 Xiankun Ren , Xueting Tian , Yunhua zhou

In a previous paper [1] [MR4101040], we initiated a systematic study of semihypergroups and had a thorough discussion about some important analytic and algebraic objects associated to this class of objects. In this paper, we investigate…

Functional Analysis · Mathematics 2022-09-30 Choiti Bandyopadhyay

Misiurewicz[19]introducedtheconceptofpseudo-entropyandproved this quantity coincides with topological entropy. Richeson et al. [21] obtained the lower bounded of topological entropy by means of the definition of pseudo-entropy. This paper…

Dynamical Systems · Mathematics 2022-07-11 Yanjie Tang , Xiaojiang Ye , Dongkui Ma

We present a general definition of entropy in the setting of pre-ordered semigroups, extending the notion of topological entropy. From our definition, we obtain the basic properties exhibited by various entropy-like theories encountered in…

Dynamical Systems · Mathematics 2023-04-26 Mauricio Achigar

Open quantum systems interact with their environment and their dynamical behaviour depends strongly both on the spectral properties of the environment and the structure of the interaction between the physical system and the environment. We…

Quantum Physics · Physics 2019-10-02 Tarek Khalil , Jean Richert

Climenhaga showed the applicability of Bowen equation to arbitrary subset of a compact metric space. The main purpose of this paper is to generalize the main result of Climenhaga to free semigroup actions for non-compact sets. We introduce…

Dynamical Systems · Mathematics 2020-07-14 Qian Xiao , Dongkui Ma

The notion of entropy appears in many fields and this paper is a survey about entropies in several branches of Mathematics. We are mainly concerned with the topological and the algebraic entropy in the context of continuous endomorphisms of…

General Topology · Mathematics 2013-08-20 Dikran Dikranjan , Anna Giordano Bruno

We give a "limit-free formula" simplifying the computation of the topological entropy for topological automorphisms of totally disconnected locally compact groups. This result allows us to extend several basic properties of the topological…

General Topology · Mathematics 2014-01-16 Anna Giordano Bruno

We undertake a local analysis of combinatorial independence as it connects to topological entropy within the framework of actions of sofic groups.

Dynamical Systems · Mathematics 2013-01-08 David Kerr , Hanfeng Li

In this paper, we introduce a new entropy-like invariant, named Hausdorff metric entropy, for finitely generated semigroups acting on compact metric spaces from a set-valued view and study its properties. We establish the relation between…

Dynamical Systems · Mathematics 2016-01-14 Bingzhe Hou , Xu Wang
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