Fixed point theorems for α-set-valued quasi-contractions in b-metric spaces

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5 Citazioni (Scopus)


Recently, Samet et al. [B. Samet, C. Vetro and P. Vetro, Fixed point theorems for alpha-psi-contractive type mappings, Nonlinear Anal., 75 (2012), 2154-2165] introduced the notion of alpha-psi-contractive mappings and established some fixed point results in the setting of complete metric spaces. In this paper, we introduce the notions of alpha-set-valued contraction and alpha-set-valued quasi-contraction and we give some fixed point theorems for such classes of mappings in the setting of b-metric spaces and ordered b-metric spaces. The presented theorems extend, unify and generalize several well-known comparable results in the existing literature.
Lingua originaleEnglish
pagine (da-a)685-696
Numero di pagine12
RivistaJournal of Nonlinear and Convex Analysis
Stato di pubblicazionePublished - 2015

All Science Journal Classification (ASJC) codes

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  • ???subjectarea.asjc.2600.2608???
  • ???subjectarea.asjc.2600.2606???
  • ???subjectarea.asjc.2600.2604???


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