Open Access
Research Article
Characteristic of pointwise-recurrent maps on a dendrite
*Guangwang SuCorresponding authors1g6w3@163.comGuangxi Key Laboratory Cultivation Base of Cross-Border E-Commerce Intelligent Information ProcessingGuangxi University of Finance and EconomicsNanning, 530003, ChinaView full profile → , Taixiang Sunstx1963@163.comGuangxi Key Laboratory Cultivation Base of Cross-Border E-Commerce Intelligent Information ProcessingGuangxi University of Finance and EconomicsNanning, 530003, China,View full profile → , Caihong Hanh198204c@163.comGuangxi Key Laboratory Cultivation Base of Cross-Border E-Commerce Intelligent Information ProcessingGuangxi University of Finance and EconomicsNanning, 530003, China,View full profile → , Bin Qinq3009b@163.comCenter of Finance and Economics NanningGuangxi Asean Research, 530003, ChinaView full profile →
* Corresponding author · click or hover a name for details
- Received:
- 29 Apr 2019
- Accepted:
- 20 Aug 2019
- Published Online:
- 29 Jul 2020
- Article type:
- Research Article
- Language:
- EN
- Article no.:
- 1726037X.2020.1779971
- Pages:
- 1–14
Abstract
Let f be a continuous map on a dendrite D with f (D) = D. Denote by R(f ) and AP (f ) the set of recurrent points and the set of almost periodic points of f , respectively, and denote by ω(x, f ), Λ(x, f ), Γ(x, f ) and Ω(x, f ) the set of ω-limit points, the set of α-limit points, the set of γ-limit points and the set of weak ω-limit points of x under f , respectively. In this paper, we show that the following statements are equivalent: (1) D = R(f ). (2) D = AP (f ). (3) Ω(x, f ) = ω(x, f ) for any x ∈ D. (4) Ω(x, f ) = Γ(x, f ) for any x ∈ D. (5) f is equicontinuous. (6) [c, d] ⊄ Ω(x, f ) for any c, d,x ∈ D with c ≠ (7) Ω(x, f ) is minimal for any x ∈ D. (8) Card(Λundefined1(x, f ) ∩ (D−End(D))) < ∞ for any x ∈ D, where Λundefined1(x, f ) = {y : x ∈ Λ(y, f )}, End(D) is the set of endpoints of D and Card(A) is the cardinal number of set A. (9) If x ∈ Λ(y, f ) with x, y ∈ D, then y ∈ ω(x, f ). (10) Map h : x → ω(x, f ) (x ∈ D) is continuous and for any x, y ∈ D with x ∉ ω(y, f ), ω(x, f ) ≠ ω(y, f ). Besides, we also study characteristic of pointwise-recurrent maps on a dendrite with the number of branch points being finite.
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