Analysis of a periodic bacteria-immunity model with delayed quorum sensing

被引:0
作者
Zhang Zhonghua [1 ]
Suo Yaohong [1 ]
Peng Jigeng [2 ]
Zhang Juan [3 ]
机构
[1] Xian Univ Sci & Technol, Sch Sci, Xian 710054, Peoples R China
[2] Xian Jiaotong Univ, Res Ctr Appl Math, Xian 710049, Peoples R China
[3] N China Elect Power Univ, Dept Math, Beijing 102206, Peoples R China
关键词
Quorum sensing; Immunity; Periodic solution; Stability; Subharmonic bifurcation; Perturbation;
D O I
10.1016/j.camwa.2008.09.019
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Based on [J. Zhang, M. Cerasuolo, P. Fergola, Z.E. Ma, On the influence of quorum sensing in the competition between bacteria and immune system (in press)], a bacteria-immunity model with periodically bacterial quorum sensing is formulated which describes the competition between bacteria and immune cells. A discrete delay is introduced to characterize the time in which bacteria receive signal molecules and combat with immune cells. In this paper, we focus on a subsystem of the bacteria-immunity model, investigate the existence and stability of the positively periodic solution, and discuss the existence of subharmonic bifurcation by the perturbation method. (C) 2008 Elsevier Ltd. All rights reserved.
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收藏
页码:2834 / 2847
页数:14
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