Hopf bifurcation in a diffusive predator-prey model with competitive interference

被引：9
|
作者：
Liu, Fuxiang [1 ]
Yang, Ruizhi [1 ]
Tang, Leiyu [2 ]
机构：
[1] Northeast Forestry Univ, Dept Math, Harbin 150040, Heilongjiang, Peoples R China
[2] Shandong Univ Sci & Technol, Coll Math & Syst Sci, Qingdao 266590, Peoples R China
来源：
CHAOS SOLITONS & FRACTALS | 2019年 / 120卷
关键词：
Predator-prey; Delay; Diffusion; Hopf bifurcation;
D O I：
10.1016/j.chaos.2019.01.029
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
In this paper, we studied a diffusive predator-prey model with competitive interference and Crowley-Martin type functional response. The conditions for local stability of coexisting equilibrium are given by analyzing the eigenvalue spectrum. By using delay as bifurcation parameter, conditions for occurrence of Hopf bifurcation are also given. The property of bifurcating period solutions is investigated by calculating the normal form. Some numerical simulations are performed to support our theoretical result. Our conclusions show that diffusion and delay are two factors that should be considered in establishing the predator-prey model, since they can induce spatially bifurcating period solutions. (C) 2019 Elsevier Ltd. All rights reserved.
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页码：250 / 258
页数：9
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