Multiplicity of Positive Almost Periodic Solutions and Local Asymptotical Stability for a Kind of Time-Varying Fishing Model with Harvesting Term

被引：0

作者：

Liu, Yuntao ^{[1
]}

Liao, Yongzhi ^{[2
]}

Yang, Yali ^{[1
]}

Han, Sufang ^{[3
]}

Zhang, Tianwei ^{[4
]}

机构：

[1] Kunming Univ Sci & Technol, Oxbridge Coll, Kunming 650106, Yunnan, Peoples R China

[2] Panzhihua Univ, Sch Math & Comp Sci, Panzhihua 617000, Sichuan, Peoples R China

[3] Yunnan Minzu Univ, India China Yoga Coll, Kunming 650504, Yunnan, Peoples R China

[4] Kunming Univ Sci & Technol, City Coll, Kunming 650051, Yunnan, Peoples R China

来源：

ENGINEERING LETTERS | 2020年 / 28卷 / 04期

关键词：

Multiplicity; Almost periodicity; Coincidence degree; Facultative mutualism; Local asymptotical stability; PREDATOR-PREY SYSTEM; DISCRETE; EXISTENCE; DYNAMICS;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, by applying Mawhin's continuation theorem of coincidence degree theory, we consider the following fishing model with harvesting term (N) over dot(t) = N(t) (a(t)/1 + [N(t-theta(t))/K(t)](r) - b(t)) - h(t) and obtain some new sufficient conditions for the existence of at least two positive almost periodic solutions for the model. In addition, the local asymptotical stability of the model is also discussed. An example is employed to illustrate the result in this paper.

引用

页码：1232 / 1237

页数：6

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