Fixed point theorems for Presic almost contraction mappings in orbitally complete metric spaces endowed with directed graphs

Abstract

The main aim of this paper is to introduce a class of generalized contractions in product spaces in the sense of Presiˇ c. Some examples and fixed point theorems for such introduced mappings in the setting of orbitally ´ complete metric spaces are proved. The results presented here extend and include many existing several results in the literature.