摘要
本文给出了一个映射具有不动点的若干充要条件。所得的结果真正推广了Jungck、Fisher和张石生的工作。
In this paper we establish some necessary and sufficient conditions of a mapping to possess fixed points. The results presented here extend properly the corresponding results of Jungck[2] ,Fisher[4] and Zhang[1].
关键词
不动点
度量空间
相容映射
fixed point
compatible metric space mappings
