【摘要】 研究一类接种的疾病在多个易感群体中传播的DS-I-R传染病模型,得到疾病流行的阈值.运用微分方程定性与稳定性理论分析了无病平衡点的局部稳定与全局渐进稳定性及存在唯一地方病平衡点与其全局渐进稳定性.更多还原

【Abstract】 In this paper,we devote to investigate a DS-I-R model with vaccination,a threshold is obtained.Further,by using qualitative and stable theory of differrential equation,sufficient conditions of local and global stability are derived for the disease free equilibrium and endemic equilibrium.更多还原