doiSerbia

Multi-valued F-contractions and the solutions of certain functional and integral equations

Sgroi Margherita (Università degli Studi di Palermo, Dipartimento di Matematica e Informatica, Palermo, Italy.6)
Vetro Calogero (Università degli Studi di Palermo, Dipartimento di Matematica e Informatica, Palermo, Italy.6)

Wardowski [Fixed Point Theory Appl., 2012:94] introduced a new concept of contraction and proved a fixed point theorem which generalizes Banach contraction principle. Following this direction of research, we will present some fixed point results for closed multi-valued F-contractions or multi-valued mappings which satisfy an F-contractive condition of Hardy-Rogers-type, in the setting of complete metric spaces or complete ordered metric spaces. An example and two applications, for the solution of certain functional and integral equations, are given to illustrate the usability of the obtained results.

Keywords: Closed multi-valued F-contractions, F-contractive condition of Hardy-Rogers-type, fixed points, metric spaces, ordered metric spaces