完备度量空间上四个映射的公共不动点

Common Fixed Points of Four Mappings in a Complete Metric Space

通过给出完备度量空间Ｘ上的两个自映射的广义拟弱交换概念，把文献［１～２］中的主要结果推广到了广义拟弱交换的自映射的情形，并举例说明本文结果的广泛性．

By giving the concept of generalized guasi-weak commutativity of two selfmappings in a complete metric space, a common fixed point theorem for four selfmappings of a complete metric space are obtained under weaker conditions, which extend the known results, and at the same time, suitable examples are given.