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Now showing 1 - 10 of 13
  • Article
    Citation - WoS: 5
    Citation - Scopus: 5
    A Solution for the Non-Cooperative Equilibrium Problem of Two Person Via Fixed Point Theory
    (Springeropen, 2015) Tran Duc Thanh; Hobiny, Aatef; Karapinar, Erdal
    In this paper, we investigate the non-cooperative equilibrium problem of two person games in the setting of game theory and propose a solution via coupled fixed point results in the context of partial metric spaces. We also realize that our coupled fixed point results can be applied to get a solution of a class of nonlinear Fredholm type integral equations.
  • Article
    Citation - WoS: 5
    Citation - Scopus: 4
    Existence and Uniqueness of Common Coupled Fixed Point Results Via Auxiliary Functions
    (Springer Singapore Pte Ltd, 2014) Chandok, S.; Karapinar, E.; Khan, M. Saeed; Mathematics
    The purpose of this paper is to establish some coupled coincidence point theorems for mappings having a mixed g-monotone property in partially ordered metric spaces. Also, we present a result on the existence and uniqueness of coupled common fixed points. The results presented in the paper generalize and extend several well-known results in the literature.
  • Article
    Citation - WoS: 57
    Citation - Scopus: 74
    Further Fixed Point Results on g-metric Spaces
    (Springer int Publ Ag, 2013) Karapinar, Erdal; Agarwal, Ravi P.
    Very recently, Samet et al. (Int. J. Anal. 2013: 917158, 2013) and Jleli-Samet (Fixed Point Theory Appl. 2012: 210, 2012) noticed that some fixed point theorems in the context of a G-metric space can be deduced by some well-known results in the literature in the setting of a usual (quasi) metric space. In this paper, we note that the approach of Samet et al. (Int. J. Anal. 2013: 917158, 2013) and Jleli-Samet (Fixed Point Theory Appl. 2012: 210, 2012) is inapplicable unless the contraction condition in the statement of the theorem can be reduced into two variables. For this purpose, we modify some existing results to suggest new fixed point theorems that fit with the nature of a G-metric space. The expressions in our result, the contraction condition, cannot be expressed in two variables, therefore the techniques used in (Int. J. Anal. 2013: 917158, 2013; Fixed Point Theory Appl. 2012: 210, 2012) are not applicable.
  • Article
    Citation - WoS: 60
    Citation - Scopus: 72
    Remarks on some coupled fixed point theorems in G-metric spaces
    (Springer international Publishing Ag, 2013) Agarwal, Ravi P.; Karapinar, Erdal
    In this paper, we show that, unexpectedly, most of the coupled fixed point theorems in the context of (ordered) G-metric spaces are in fact immediate consequences of usual fixed point theorems that are either well known in the literature or can be obtained easily.
  • Article
    Citation - WoS: 14
    Citation - Scopus: 25
    On Coupled Fixed Point Theorems on Partially Ordered g-metric Spaces
    (Springeropen, 2012) Karapinar, Erdal; Kaymakcalan, Billur; Tas, Kenan
    In this manuscript, we extend, generalize and enrich some recent coupled fixed point theorems in the framework of partially ordered G-metric spaces in a way that is essentially more natural.
  • Article
    Citation - WoS: 1
    Tripled Fixed Point Theorems in Partially Ordered Metric Spaces
    (Univ Babes-bolyai, 2013) Karapinar, Erdal
    The notion of tripled fixed point is introduced by Berinde and Borcut [1]. In this manuscript, some new tripled fixed point theorems are obtained by using a generalization of the results of Luong and Thuang [11].
  • Article
    Citation - WoS: 78
    Citation - Scopus: 63
    Discussion on Some Coupled Fixed Point Theorems
    (Springer international Publishing Ag, 2013) Samet, Bessem; Karapinar, Erdal; Aydi, Hassen; Rajic, Vesna Cojbasic
    In this paper, we show that, unexpectedly, most of the coupled fixed point theorems (on ordered metric spaces) are in fact immediate consequences of well-known fixed point theorems in the literature. MSC: 47H10, 54H25.
  • Article
    Citation - WoS: 13
    Citation - Scopus: 18
    A note on some coupled fixed-point theorems on G-metric spaces
    (Springeropen, 2012) Ding, Hui-Sheng; Karapinar, Erdal
    The purpose of this paper is to extend some recent coupled fixed-point theorems in the context of G-metric space by essentially different and more natural way. We state some examples to illustrate our results.
  • Article
    Citation - WoS: 10
    Citation - Scopus: 9
    A Coupled Coincidence Point Theorem in Partially Ordered Metric Spaces With an Implicit Relation
    (Springer international Publishing Ag, 2013) Gulyaz, Selma; Karapinar, Erdal; Yuce, Ilker Savas
    In this manuscript, we discuss the existence of a coupled coincidence point for mappings and , where F has the mixed g-monotone property, in the context of partially ordered metric spaces with an implicit relation. Our main theorem improves and extends various results in the literature. We also state some examples to illustrate our work. MSC: 47H10, 54H25, 46J10, 46J15.
  • Article
    Citation - WoS: 26
    Citation - Scopus: 19
    A Note on 'coupled Fixed Point Theorems for α-ψ< Mappings in Partially Ordered Metric Spaces'
    (Springer international Publishing Ag, 2013) Karapinar, Erdal; Agarwal, Ravi P.
    In this paper, we show that some examples in (Mursaleen et al. in Fixed Point Theory Appl. 2012:124, 2012) are not correct. Then, we extend, improve and generalize their results. Finally, we state some examples to illustrate our obtained results.