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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.
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页码:62 / 70
页数:9
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