The depths of the centres and the attracting centres of a class of dendrite maps
The depths of the centres and the attracting centres of a class of dendrite maps
复制标题
一类树突图的中心深度和吸引中心
DOI:
10.1016/j.jmaa.2019.06.072
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发表时间:
2019-11
影响因子:
1.3
通讯作者:
B Qin
中科院分区:
文献类型:
--
作者:
T Sun;G Su;B Qin
Let D 1 be the set of dendrites with the number of the accumulation points of branch points being finite, D∈ D 1 and f be a continuous map from D to D. Denote by R (f), Ω (f) and ω (x, 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∈ D ω (x, f) and ω n+ 1 (f)=∪ x∈ ω n (f) ω (x, f) and Ω n+ 1 (f)= Ω (f| Ω n (f)) for any n∈ N. In this paper, we show that Ω 4 (f)= R (f)‾ and the depth of f is at most 4, and ω 4 (f)= ω 3 (f). Furthermore, we show that there exist dendrites D 1, D 2∈ D 1 and f 1∈ C 0 (D 1) and f 2∈ C 0 (D 2) such that Ω 3 (f 1)≠ R (f 1)‾ and ω 3 (f 2)≠ ω 2 (f 2).
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影响因子:
0.9
作者:
I. Naghmouchi
通讯作者:
I. Naghmouchi
影响因子:
0.5
作者:
R. Devaney;A. Beardon
通讯作者:
R. Devaney;A. Beardon
影响因子:
0.6
作者:
S. Baldwin
通讯作者:
S. Baldwin
DOI:
--
发表时间:
1992-04
期刊:
--
影响因子:
--
作者:
Sam B. Nadler
通讯作者:
Sam B. Nadler
影响因子:
1.4
作者:
T. Sun;H. Xi
通讯作者:
T. Sun;H. Xi