摘要
本文利用α凹算子与β凸算子之和的多重不动点定理给出一阶时滞差分方程多重周期解存在性的充分条件.
Based on the fixed point theorem of the sum of concove operators and conves operators, sufficient conditions is derive I for the existence of multiple positive periodic solutions of delay difference equations.
出处
《山西大同大学学报(自然科学版)》
2009年第1期1-2,共2页
Journal of Shanxi Datong University(Natural Science Edition)
基金
山西省自然科学基金项目[2008011002-1]
山西省高校科技研究开发项目[200613041]
关键词
时滞
差分方程
多重周期解
α凹算子与β凸算子之和的多重不动点定理
delay
difference equations
multiple periodic solutions
fixed point theorem of the sum of concove operators and cot yes operators