A dynamics stochastic model with HIV infection of CD4+ T-cells driven by Levy noise

被引:21
|
作者
Cheng, Yan [1 ,2 ]
Li, Mingtao [1 ,2 ]
Zhang, Fumin [1 ,2 ]
机构
[1] Taiyuan Univ Technol, Coll Math, Taiyuan 030024, Shanxi, Peoples R China
[2] Gannan Normal Univ, Key Lab Jiangxi Prov Numer Simulat & Emulat Tech, Ganzhou, Peoples R China
关键词
Stochastic model; Levy noise; Within-host HIV infection; Persistence in mean; DIFFERENTIAL-EQUATION DRIVEN; EULER SCHEME; POPULATION-DYNAMICS;
D O I
10.1016/j.chaos.2019.07.054
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Aim to described this strong fluctuation by introducing a Levy jump process into the HIV dynamical modelA stochastic model that describing the interaction between the CD4(+) T-cells and the free human immunodeficiency virus (HIV) is investigated, a basic biological mechanism which describe the strong fluctuation in environment be considered into the model by introducing Levy process. First, we obtained that the stochastic model admits a unique global positive solution. Then, constructed a function to analyze the extinction of infected the CD4(+) T-cells and virus particles. Next, we investigated the persistence in mean of the infected CD4(+) T-cells, a sufficient condition be established. Finally, some numerical simulations are given to verify the result of theoretical analysis. (C) 2019 Published by Elsevier Ltd.
引用
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页码:62 / 70
页数:9
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