摘要
根据艾滋病的传播规律,本文建立了一类传染病模型.在模型中,HIV携带者分为幼年和成年两类,HIV可垂直传染,艾滋病患者有额外死亡.我们用再生矩阵求出了模型的基本再生数,并得出当基本再生数小于1时,模型只有无病平衡点,而当基本再生数大于1时,模型还有地方病平衡点.最后,应用第二加性复合矩阵等理论,文中证明了各平衡点全局渐近稳定性.
According to the spreading law of AIDS, an epidemic model is formulated. In the model, the carriers of HIV include juveniles and adults, the HIV can be transmitted vertically, AIDS patients may die of disease. By means of the reproductive matrix, we obtain the basic reproductive number. If the basic reproductive number is less than 1, the model has disease-free equilibrium only. However, if the basic reproductive number is larger than 1, the model has another endemic equilibrium. By using second additive compound matrices, we have studied the global stability of all equilibriums.
出处
《工程数学学报》
CSCD
北大核心
2012年第3期399-404,共6页
Chinese Journal of Engineering Mathematics
基金
国家自然科学基金(11071283)
山西省自然科学基金(2009011005-3)
山西省重点学科项目(2011028
20111030)~~
关键词
垂直传播
基本再生数
稳定性
平衡点
vertical transmission
basic reproductive number
stability
equilibrium point
