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一类SIQS传染病模型稳定性分析
引用本文:李琪,陈绍东.一类SIQS传染病模型稳定性分析[J].兰州理工大学学报,2012,38(1):167-172.
作者姓名:李琪  陈绍东
作者单位:1. 西安建筑科技大学理学院,陕西西安,710055
2. 南阳理工学院应用数学系,河南南阳,473004
摘    要:建立一类具有一般非线性接触率及染病年龄结构的SIQS传染病模型.运用不动点定理、Bellman-Gronwall引理及Laplace变换等方法讨论地方病平衡点的存在性及稳定性,无病平衡点的稳定性.得到地方病平衡点指数渐近稳定的一般性条件.

关 键 词:隔离  非线性接触率  染病年龄  SIQS传染病模型

Stability analysis of a class of SIQS epidemic disease model
LI Qi , CHEN Shao-dong.Stability analysis of a class of SIQS epidemic disease model[J].Journal of Lanzhou University of Technology,2012,38(1):167-172.
Authors:LI Qi  CHEN Shao-dong
Institution:1.School of Science,Xi’an University of Architecture and Technology,Xi’an 710055,China;2.Department of Mathematics,Nanyang Institute of Technology,Nanyang 473004,China)
Abstract:A class of SIQS epidemic disease model with general nonlinear contact rate and infection-age was formulated.By using the fixed theorem,Bellman-Gronwall lemma and Laplace transformation,the existence and stability of endemic disease equilibrium,the stability of disease-free equilibrium were discussed,respectively.In the same time,an ordinary condition was obtained under which the endemic disease equilibrium index was of exponential asymptotical stability.
Keywords:quarantine  nonlinear contact rate  infection-age  SIQS epidemic disease model
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