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Now showing 1 - 5 of 5
  • Article
    Citation - WoS: 7
    Citation - Scopus: 9
    On Cyclic Generalized Weakly c-contractions on Partial Metric Spaces
    (Hindawi Ltd, 2013) Karapinar, Erdal; Rakocevic, Vladimir
    We give new results of a cyclic generalized weakly C-contraction in partial metric space. The results of this paper extend, generalize, and improve some fixed point theorems in the literature.
  • Article
    Citation - WoS: 28
    Citation - Scopus: 33
    Ciric Type Nonunique Fixed Point Theorems on b-metric Spaces
    (Univ Nis, Fac Sci Math, 2017) Alsulami, Hamed H.; Karapinar, Erdal; Rakocevic, Vladimir
    In this paper, inspired the very interesting results of Ciric [20], we investigate the existing non-unique fixed points of certain operators in the context of b-metric spaces. Our main results unify and cover several existing results on the topic in the literature.
  • Article
    Citation - WoS: 3
    Citation - Scopus: 7
    Existence of Periodic Fixed Point Theorems in the Setting of Generalized Quasi-Metric Spaces
    (Hindawi Publishing Corporation, 2014) Chen, Chi-Ming; Karapinar, Erdal; Rakocevic, Vladimir
    We introduce the notions of (alpha - phi - psi)-weaker Meir-Keeler contractive mappings and (alpha - phi)- stronger Meir-Keeler contractive mappings. We discuss the existence of periodic points in the setting of generalized quasi-metric spaces. Our results improve, extend, and generalize several results in the literature.
  • Article
    Citation - WoS: 6
    Citation - Scopus: 10
    On Quasi-Contraction Mappings of Ciric and Fisher Type Via ω-distance
    (Natl inquiry Services Centre Pty Ltd, 2019) Darko, Kocev; Karapinar, Erdal; Rakocevic, Vladimir
    Kada, Suzuki, and Takahashi introduced and studies the concept of omega- distance in fixed point theory. In this paper, we generalize and unify Ciric' and Fisher fixed points results for quasi-contractions on metric space to omega-distance on complete metric spaces. We also extend some results of Kada, Suzuki and Takahashi, and Suzuki. Our methods of proofs are new and even simpler than the corresponding methods in metric spaces.
  • Article
    Citation - WoS: 27
    Citation - Scopus: 29
    Meir-Keeler Type Contractions on Modular Metric Spaces
    (Univ Nis, Fac Sci Math, 2018) Aksoy, Umit; Karapinar, Erdal; Erhan, Inci M.; Rakocevic, Vladimir
    In this paper we introduce contraction mappings of Meir-Keeler types on modular metric spaces and investigate the existence and uniqueness of their fixed points. We give an example which demonstrates our theoretical results.