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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1504.07520math.DS
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正拓扑熵与$Δ$ -弱混合集

Positive topological entropy and $Δ$-weakly mixing sets

Wen Huang, Jian Li, Xiangdong Ye, Xiaoyao Zhou

摘要:

引入了$Δ$ -弱混合集的概念,它具有与弱混合集相似的性质.证明了若动力系统具有正的拓扑熵,则$Δ$ -弱混合集在超空间中的熵集的闭包中是剩余的.证明了具有遍历不变测度且不可远测的拓扑动力系统中$Δ$ -弱混合集的存在性.此外,我们的结果推广了几个著名的结果,也回答了几个公开的问题。

英文摘要:

The notion of $Δ$-weakly mixing set is introduced, which shares similar properties of weakly mixing sets. It is shown that if a dynamical system has positive topological entropy, then the collection of $Δ$-weakly mixing sets is residual in the closure of the collection of entropy sets in the hyperspace. The existence of $Δ$-weakly mixing sets in a topological dynamical system admitting an ergodic invariant measure which is not measurable distal is obtained. Moreover, Our results generalize several well known results and also answer several open questions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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