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Chaos of Induced Set-Valued Dynamical Systems on Uniform Spaces

  • Hua Shao

摘要

Let \((X,\mathcal {U})\) ( X , U ) be a Hausdorff uniform space and \(f_{0,\infty }=\{f_n\}_{n=0}^{\infty }\) f 0 , = { f n } n = 0 be a sequence of uniformly continuous self-maps on X. The nonautonomous dynamical system \((X,f_{0,\infty })\) ( X , f 0 , ) induces the set-valued dynamical system \((\mathcal {K}(X),\bar{f}_{0,\infty })\) ( K ( X ) , f ¯ 0 , ) on the hyperspace \(\mathcal {K}(X)\) K ( X ) consisting of all the nonempty compact subsets of X. In this paper, we mainly investigate the connections between some dynamical properties of \((X,f_{0,\infty })\) ( X , f 0 , ) and those of \((\mathcal {K}(X),\bar{f}_{0,\infty })\) ( K ( X ) , f ¯ 0 , ) . We prove that chain mixing, shadowing property, h-shadowing property, specification property and multi- \(\mathscr {F}\) F -sensitivity of \((X,f_{0,\infty })\) ( X , f 0 , ) is equivalent to that of \((\mathcal {K}(X),\bar{f}_{0,\infty })\) ( K ( X ) , f ¯ 0 , ) , respectively. In particular, we show that chain mixing of \((X,f_{0,\infty })\) ( X , f 0 , ) and topological mixing of \((\mathcal {K}(X),\bar{f}_{0,\infty })\) ( K ( X ) , f ¯ 0 , ) are equivalent provided that \((X,f_{0,\infty })\) ( X , f 0 , ) has shadowing property. We obtain that positive topological entropy of \((X,f_{0,\infty })\) ( X , f 0 , ) implies infinite entropy of \((\mathcal {K}(X),\bar{f}_{0,\infty })\) ( K ( X ) , f ¯ 0 , ) and confirm that topological equi-conjugacy between two dynamical systems is preserved by their induced set-valued systems.