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Issue:
Global Analysis of a SEIR Epidemic Model with Nonlinear Incidence Rate under Vaccination
Author(s):
ZHU Hui
,
XIONG Zuo-liang
,
WANG Wei
Pages:
113
-
117
Year:
2009
Issue:
2
Journal:
Journal of Nanchang University(Natural Science)
Keyword:
预防接种
;
SEIR传染病模型
;
平衡点
;
全局渐近稳定性
;
Abstract:
研究一类具有预防接种的非线性传染率SEIR传染病模型,得到了各类平衡点存在的阈值条件.利用Liapunov-Lasalle不变集原理证明了无病平衡点全局渐近稳定,利用Hurwitz判别法得到了地方病平衡点的局部渐近稳定的充分条件.应用微分方程轨道稳定和复合矩阵的相关理论得到了地方病平衡点的全局渐近稳定性的充分条件.
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