一类具非单调响应函数竞争模型的正解  

Positive solutions of a competitive model with non-monotonic functional response

作　　者：陆文林[1] 

机构地区：[1]盐城工学院基础教学部,江苏盐城224003

出　　处：《阜阳师范学院学报（自然科学版）》2009年第2期23-26,共4页Journal of Fuyang Normal University(Natural Science)

摘　　要：偏微分方程椭圆问题的正解在理论和实际应用方面都有着重要的意义.文章考虑了一类带D irche let边界条件的具非单调响应函数竞争模型,利用不动点理论以及拓扑度的方法,给出了正解存在的充分条件.The existence of positive solutions of elliptic equations is important in theory and application. In this paper, it is considered an competitive model with non-monotonic functional response in ecology. By using of fixed point theory and topological degree method, the sufficient conditions for the existences of the positive solutions are given.

关 键 词：拓扑度 不动点指数 竞争模型 

分 类 号：O175.26[理学—数学]