New Results on F-Contractions in Complete Metric Spaces

The main purpose of this paper is to improve, generalize, unify, extend and enrich the recent results established by Dung Hang (2015), Piri Kumam (2014, 2016), Singh et al. (2018). In our proofs, we only use property (F1) Wardowski’s F-contraction, while many authors in their papers still all tree properties F-contraction as well two new introduced Kumam. Our approach indicates that for most with sufficient. It interesting investigate whether sufficient case multi-valued mappings.