Fixed point theorems of contractive mappings in cone b-metric spaces and applications

Abstract

In this paper we present some new examples in cone b -metric spaces and prove some fixed point theorems of contractive mappings without the assumption of normality in cone b -metric spaces. The results not only directly improve and generalize some fixed point results in metric spaces and b -metric spaces, but also expand and complement some previous results in cone metric spaces. In addition, we use our results to obtain the existence and uniqueness of a solution for an ordinary differential equation with a periodic boundary condition.