摘要
本文给出保证传染病模型非线性积分方积x(t)=integral from n=t-τto t f[s,x(s)]ds的非零周期解存在唯一的一组充分条件。
Sufficent condition to issure the uniqueness of nonzero periodic solution to the integral equation, x(t)=integral from n=t-τ to t f(s, x(s))ds, are given.The equation can be interpreted as a model for the spread of infectious diseases (e.g., gonorrhea or any of the rhinovirus viruses)if x(t)is the proportion of infectives at time t and f (t, x (t))is the proportion of new infectives per unit time.
出处
《生物数学学报》
CSCD
北大核心
1990年第2期97-100,共4页
Journal of Biomathematics
关键词
传染病模型
非零解唯一性
积分方程
infectious disease model uniqueness of nonzero solution u_0—concave map.
