Coincidence points and common fixed points for three mappings with integral type implicit contraction conditions on ordered metric spaces

摘要

In this paper, by using the known class Ψ? of 5-dimensional functions determined by the known classes {C ,Φu}, we discuss the existence problems of coincidence points for three mappings of integral type with semiimplicit contraction conditions and obtain a common fixed point theorem for two mappings on ordered metric spaces. Finally, we give a sufficient condition under which there exists a unique common fixed point.