3 citations · 4 across the 4 of their papers we have counts for
7 papers
Time-restricted sensitivity and entropy
Kairan Liu, Leiye Xu, Ruifeng Zhang
In this paper, we consider measure-theoretical restricted sensitivity and topological restricted sensitivities by restricting the first sensitive time. For a given topological dyna…
Discrete spectrum for amenable group actions
Tao Yu, Guohua Zhang, Ruifeng Zhang
In this paper, we study discrete spectrum of invariant measures for countable discrete amenable group actions. We show that an invariant measure has discrete spectrum if and only i…
Topology and Topological Sequence Entropy
Ľubomír Snoha, Xiangdong Ye, Ruifeng Zhang
Let be a compact metric space and be continuous. Let be the supremum of topological sequence entropies of over all subsequences of $\mathbb…
A note on dimensional entropy for amenable group actions
Dou Dou, Ruifeng Zhang
In this short note, for countably infinite amenable group actions, we provide topological proofs for the following results: Bowen topological entropy (dimensional entropy) of the w…
When is a dynamical system mean sensitive?
Felipe García-Ramos, Jie Li, Ruifeng Zhang
This article is devoted to study which conditions imply that a topological dynamical system is mean sensitive and which do not. Among other things we show that every uniquely ergod…
When all closed subsets are recurrent?
Jie Li, Piotr Oprocha, Xiangdong Ye +1
In the paper we study relations of rigidity, equicontinuity and pointwise recurrence between a t.d.s. and the t.d.s. induced on the hyperspace of all co…