引进了一个5元实函数类Γ,并考虑了满足积分型收缩条件的4个映射,证明了具有交换点且满足反交换性的映射族的唯一公共不动点存在定理.同时,给出了若干个特殊结果.所得结果推广和改进了很多Banach收缩原理的推广结果.
A 5-dimensional real functional sets Г is introduced, four mappings satisfying some contractive condition of integral type on W-spaces are considered, and a unique common fixed point theorem for four mappings with commuting points and converse commuting property is proved.At the same time ,some particular forms are given.The obtained results here generalize and improve many generalizations of Banach contraction principle.