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Now showing 1 - 6 of 6
  • Article
    Citation - WoS: 3
    Citation - Scopus: 4
    A New Class of Generalized Contraction Using p-functions in Ordered Metric Spaces
    (Sciendo, 2015) Amor, Sana Hadj; Karapinar, Erdal; Kumam, Poom
    In this paper, we introduced and studied a new class of mappings in ordered metric spaces that is inspired from the concept of a P-function introduced in Chaipunya et. al. [10]. With our new class, we furnish fixed point theorems for continuous, noncontinuous, monotonic, and nonmonotonic mappings in various kinds of the ordering structures.
  • Article
    Citation - WoS: 37
    Best Proximity Points of Kannan Type Cyclic Weak Φ-Contractions in Ordered Metric Spaces
    (Sciendo, 2012) Karapinar, Erdal
    In this manuscript, the existence of the best proximity of Kannan Type cyclic weak phi-contraction in ordered metric spaces is investigated. Some results of Rezapour-Derafshpour-Shahzad [22] are generalized.
  • Article
    Citation - WoS: 67
    An Ulam stability result on quasi-b-metric-like spaces
    (Sciendo, 2016) Alsulami, Hamed H.; Gulyaz, Selma; Karapinar, Erdal; Erhan, Inci M.
    In this paper a class of general type alpha-admissible contraction mappings on quasi-b-metric-like spaces are defined. Existence and uniqueness of fixed points for this class of mappings is discussed and the results are applied to Ulam stability problems. Various consequences of the main results are obtained and illustrative examples are presented.
  • Article
    Citation - Scopus: 1
    New Organizations in Complex Networks: Survival and Success
    (Sciendo, 2022) Asbaş,C.; Senyuva,Z.; Tuzlukaya,S.
    Purpose: The present study investigates the survival and success of new organizations in the light of complex network theory. Methodology: The empirical data was collected using the survey method from the technology park companies are analyzed with social network analysis. Two main methods were used in this study: descriptive statistics and social network analysis. Findings: The findings indicate that new nodes appearing because of splitting up of bigger nodes from present or other related networks have a higher degree of centrality. In practice, this means that companies founded by former members of large-scale companies from these networks are more successful due to the ease in providing the flow of resources and information through previous links. This suggests that the imprint effect can be observed in the appearance, lifecycle, and performance of new nodes in complex networks. Originality: The literature lacks studies on new organizations' lifecycle in complex networks despite the existence of studies about new organizations in organizational networks. This study examines the appearance, success, and survival of new organizations in networks by complex network approaches such as dynamism, dissipative structures, and uncertainties. © 2022 Caner Asbaş et al., published by Sciendo.
  • Article
    On the Metrizability of Suprametric Space
    (Sciendo, 2025) Karapınar, E.; Cvetković, M.
    The question of metrizability of suprametric space is answered positively. The observed metric coincides with a suprametric in a way that convergence and continuity are preserved between suprametric space and associated metric space along with the propery of a Cauchy sequence. Consequently, a suprametric space is complete if and only if associated metric space is complete. Fixed point theorems in suprametric space are obtained as a corollary of well-known fixed point results. © 2025 Erdal Karaplnar et al.
  • Article
    Citation - WoS: 15
    Citation - Scopus: 13
    Matkowski Theorems in the Context of Quasi-Metric Spaces and Consequences on g-metric Spaces
    (Sciendo, 2016) Karapinar, Erdal; Roldan-Lopez-de-Hierro, Antonio-Francisco; Samet, Bessem
    In this paper, we prove the characterization of a Matkowski's theorem in the setting of quasi-metric spaces. As a result, we observe that some recent fixed point results in the context of G-metric spaces are consequences of our main result.