摘要
研究了一类中立型差分方程,运用锥多重不动点理论(Avery-Peterson不动点理论),给出了其至少存在三个正周期解的充分条件.
This paper is concerned with a class of neutral difference equation, by using a multiple fixed point theorem(Avery-Peterson fixed point theorem) in cones, several sufficient conditions are established for the existence of at least three positive periodic solutions for the equation.
出处
《西北师范大学学报(自然科学版)》
CAS
北大核心
2016年第5期14-17,23,共5页
Journal of Northwest Normal University(Natural Science)
基金
河南省高等学校重点科研项目(16A110008
15A110004)
关键词
中立型差分方程
正周期解
锥不动点
neutral difference equation
positive periodic solution
fixed point in cones