中国科学技术大学学报 ›› 2014, Vol. 44 ›› Issue (2): 93-95.DOI: 10.3969/j.issn.0253-2778.2014.02.002

• 原创论文 • 上一篇    下一篇

超空间系统为Devaney混沌的等价条件

李 健   

  1. 汕头大学数学系,广东汕头 515063
  • 收稿日期:2013-07-12 修回日期:2014-01-13 出版日期:2014-02-28 发布日期:2014-02-28
  • 作者简介:LI Jian, male, born in 1985, PhD. Research field: Topological dynamics and ergodic theory. E-mail: lijian09@mail.ustc.edu.cn

Equivalent conditions of Devaney chaos on the hyperspace

LI Jian   

  1. Department of Mathematics, Shantou University, Shantou 515063, China
  • Received:2013-07-12 Revised:2014-01-13 Online:2014-02-28 Published:2014-02-28

摘要: 设T是紧致度量空间X上的一个连续自映射.映射T自然诱导了由X所有非空闭子集组成的超空间K(X)上的一个连续自映射TK.证明了系统(K(X),TK)为Devaney混沌的当且仅当(K(X),TK)为一个HY系统当且仅当(X,T)为一个HY系统,其中,称一个系统为HY系统如果它是完全传递的和具有稠密的小周期集.

关键词: 超空间, Devaney混沌, HY系统

Abstract: Let T be a continuous self-map of a compact metric space X. The transformation T induces naturally a continuous self-map TK on the hyperspace K(X) of all non-empty closed subsets of X. It is shown that the system (K(X),TK) is Devaney chaotic if and only if (K(X),TK) is an HY-system if and only if (X,T) is an HY-system, where a system is called an HY-system if it is totally transitive and has dense small periodic sets.

Key words: hyperspace, Devaney chaos, HY-system