Dergiler / Hacettepe Journal of Mathematics and Statistics / 2017 / Cilt: 46 - Sayı: 1

Characterizations of quasi-metric completeness in terms of Kannan-type fixed point theorems

Characterizations of quasi-metric completeness in terms of Kannan-type fixed point theorems

Carmen Alegre, Hacer Dağ, Salvador Romaguera, Pedro Tirado

Sayfa
67–76
DOI
—

Abstract

We obtain quasi-metric versions of Kannan's fixed point theorem for self-mappings and multivalued mappings, respectively, which are used to deduce characterizations of d-sequentially complete and of left K-sequentially complete quasi-metric spaces, respectively.