首页|具有两种传播方式和适应性免疫时滞的HBV感染模型研究

具有两种传播方式和适应性免疫时滞的HBV感染模型研究

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提出了一类具有饱和发生率和适应性免疫反应时滞的HBV感染模型,同时考虑两种感染途径.该模型包括未感染肝细胞、感染肝细胞、游离HBV病毒、CTL免疫反应和抗体响应5个仓室.定义5个阈值:感染基本再生数Ro,抗体免疫再生数R1,CTL免疫再生数R2,CTL免疫竞争再生数R3和抗体免疫竞争再生数R4.得到了模型平衡点的存在唯一性.通过分析特征方程、构造Lyapunov泛函和Lasalle不变原理,建立了各类平衡点局部以及全局渐近稳定性的判定准则.
Study on HBV Infection Model with Two Kinds of Transmission Routes and Adaptive Immune Delays
In this paper,we propose a delayed HBV infection model with saturation incidence and adaptive immune response,considering two infection pathways.The model includes five compartments of uninfected hep-atocytes,infected hepatocytes,free HBV virus,CTL immune response,and antibodies.Define five thresholds:infection basic reproductive number Ro,antibody immune reproductive number R1,CTL immune reproductive number R2,CTL immune competition reproductive number R3 and antibody immune competition reproductive number R4.Five kinds of equilibria of the model are obtained.By analyzing the characteristic equations and con-structing suitable Lyapunov functionals and Lasalle invariance principles,the criteria for local and global asymptotic stability of each equilibrium are established.

adaptive immune responsediscrete delaysglobal asymptotically stableLyapunov functionalsaturation incidence

王泽东、张龙

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新疆大学数学与系统科学学院,新疆乌鲁木齐 830017

适应性免疫反应 离散时滞 全局渐近稳定 Lyapunov泛函 饱和发生率

国家自然科学基金&&新疆维吾尔自治区自然科学杰出青年基金新疆维吾尔自治区高校科研重点项目新疆维吾尔自治区应用数学重点实验室开放课题

12261087118610652022D01E41XJEDU2021I0022021D04014

2024

新疆大学学报(自然科学版)(中英文)
新疆大学

新疆大学学报(自然科学版)(中英文)

CSTPCD
影响因子:0.13
ISSN:2096-7675
年,卷(期):2024.41(5)