Abstract

Let Y be a local dendrite with the number of branch points being finite and f:Y→Y be continuous. Denote by P(f), R(f), Ω(f) and ω(x,f) the set of periodic points of f, the set of recurrent points of f, the set of non-wandering points of f and the set of ω-limit points of x under f, respectively. Write ω(f)=∪x∈Yω(x,f) and ωn+1(f)=∪x∈ωn(f)ω(x,f) and Ωn+1(f)=Ω(f|Ωn(f)) for any positive integer n. In this paper, we show that Ω3(f)=R(f)‾ and the depth of f is at most 3, and ω3(f)=ω2(f). Furthermore, we show that R(f)‾=R(f)∪P(f)‾.

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