A stochastic model of AIDS and condom use

被引:174
作者
Dalal, Nirav [1 ]
Greenhalgh, David [1 ]
Mao, Xuerong [1 ]
机构
[1] Univ Strathclyde, Dept Stat & Modelling Sci, Glasgow G1 1XH, Lanark, Scotland
关键词
HIV; AIDS; condom use; Brownian motion; stochastic differential equation; Ito's formula; asymptotic stability;
D O I
10.1016/j.jmaa.2006.01.055
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper we introduce stochasticity into a model of AIDS and condom use via the technique of parameter perturbation which is standard in stochastic population modelling. We show that the model established in this paper possesses non-negative solutions as desired in any population dynamics. We also carry out a detailed analysis on asymptotic stability both in probability one and in pth moment. Our results reveal that a certain type of stochastic perturbation may help to stabilise the underlying system. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码:36 / 53
页数:18
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