摘要
通过构造距离函数d(x),并结合拓扑度的计算,利用区域的边界特征,得到一些新的不动点存在定理,所得结果可以广泛用于一些非线性微分方程解存在性问题的讨论中.
Through the distance function d(x) and the combination of the computation of topological degree,using the boundary character,some new results of the existence of fixed point were obtained.These results could be widely used in the discussion of the existence of the solution for some non-linear differential equation.
出处
《集美大学学报(自然科学版)》
CAS
2011年第2期145-148,共4页
Journal of Jimei University:Natural Science
基金
福建省自然科学基金资助项目(Z0511048)
关键词
拓扑度
不动点
非线性微分方程
topological degree
fixed point
non-linear differential equation