Multiplicity of topological systems

IF 0.8 3区 数学 Q2 MATHEMATICS Ergodic Theory and Dynamical Systems Pub Date : 2024-02-05 DOI:10.1017/etds.2023.118
DAVID BURGUET, RUXI SHI
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引用次数: 0

Abstract

We define the topological multiplicity of an invertible topological system Abstract Image$(X,T)$ as the minimal number k of real continuous functions Abstract Image$f_1,\ldots , f_k$ such that the functions Abstract Image$f_i\circ T^n$, Abstract Image$n\in {\mathbb {Z}}$, Abstract Image$1\leq i\leq k,$ span a dense linear vector space in the space of real continuous functions on X endowed with the supremum norm. We study some properties of topological systems with finite multiplicity. After giving some examples, we investigate the multiplicity of subshifts with linear growth complexity.

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拓扑系统的多重性
我们将可逆拓扑系统 $(X,T)$ 的拓扑多重性定义为实数连续函数 $f_1,\ldots , f_k$ 的最小数目 k,使得函数 $f_i\circ T^n$, $n\in {\mathbb {Z}}$, $1\leq i\leq k,$ 在 X 上的实数连续函数空间中横跨一个簇密的线性向量空间,并赋予上顶规范。我们研究具有有限多重性的拓扑系统的一些性质。在给出一些例子之后,我们研究了具有线性增长复杂性的子转移的多重性。
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来源期刊
CiteScore
1.70
自引率
11.10%
发文量
113
审稿时长
6-12 weeks
期刊介绍: Ergodic Theory and Dynamical Systems focuses on a rich variety of research areas which, although diverse, employ as common themes global dynamical methods. The journal provides a focus for this important and flourishing area of mathematics and brings together many major contributions in the field. The journal acts as a forum for central problems of dynamical systems and of interactions of dynamical systems with areas such as differential geometry, number theory, operator algebras, celestial and statistical mechanics, and biology.
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