摘要
研究了终身免疫型传染病动力模型平衡点的稳定性,并用Hopf分歧理论证明了在正平衡点小振幅周期解的不存在性.
The stability of dynamic model equilibrium for lifelong immunity infections was studied. The small amplitude periodic solution at the positive equilibrium points was proved by using Hopf theory.
出处
《北华大学学报(自然科学版)》
CAS
2001年第1期13-16,共4页
Journal of Beihua University(Natural Science)
关键词
终身免疫型传染病
正平衡点
稳定性
小振幅周期解
Lifelong immunity infections
Stability of the positive equilibrium
Small amplitude periodic solution