一类具有年龄和病程的SEIR传染病模型平衡解的存在性

摘要

研究了一类具有年龄和病程的SEIR传染病模型，利用特征线法、零点定理，证明了无病平衡解和地方病平衡解的存在性。%In this paper, we research a class of SEIR epidemic model with age and course of diseases. By using characteristic method and the theorem of zero, the existence of disease-free equilibrium and endemic equilibrium are proved.