一类差分方程的正周期解  

Positive Periodic Solutions for a Class of Difference Equations

作　　者：刘宁元[1] 李松华[2] 

机构地区：[1]株洲职业技术学院,湖南株洲412000 [2]湖南理工学院数学系,湖南岳阳414006

出　　处：《湖南理工学院学报（自然科学版）》2008年第1期8-10,36,共4页Journal of Hunan Institute of Science and Technology(Natural Sciences)

摘　　要：讨论了一类差分方程正周期解的存在性,并应用不动点定理,得到了方程存在一个或二个正周期的充分条件.In this article, existence of positive periodic solutions of a kind of difference equation is investigated. By using a fixed point theorem in a cone, existence results for single and two positive periodic solutions to the equation are obtained.

关 键 词：差分方程 正周期解 不动点定理 

分 类 号：O175.8[理学—数学]