摘要
本文以Amann引理为主要工具,证明了一类非线性积分方程具有多重非负周期解。
This paper deals with the nonlinear integral equation u(t)=integral fromφ(1)=φ(1)to∞ F(s,u(s))ds, which arises from modeling the spread of disease with seasonal dependence.Using Amann's lemma, we prove that the equation has multiple nonnegative periodic solutions subject to some structure conditions on φ(t), φ(t) and F(t,u).
出处
《吉林大学自然科学学报》
CAS
CSCD
1991年第4期46-50,共5页
Acta Scientiarum Naturalium Universitatis Jilinensis
关键词
积分方程
非线性
周期解
存在性
nonlinear, integral equation, periodic solution, existence
