Приказано за аутора "Radenović, Stojan"

Приказ резултата 1-18 од 18

    • C-class functions on some fixed point results in ordered partial metric spaces via admissible mappings 

      Ansari, Arslan Hojat; Došenović, Tatjana; Radenović, Stojan; Saleem, Naeem; Šešum-Čavić, Vesna; Vujaković, Jelena (Department of Mathematics and Informatics, Faculty of Sciences, Novi Sad, 2018-06-05)
      In this paper, we generalized the results presented in the paper W. Long, S. Khaleghizadeh, P. Salimi, S. Radenović and S. Shukla, Some new fixed point results in partially ordered metric spaces via admissible mappings, ...

    • Caristi, Nadler and H + -Type Contractive Mappings and Their Fixed Points in θ-Metric Spaces 

      Patle, Pradip; Vujaković, Jelena; Patel, Deepesh; Radenović, Stojan (MDPI (Basel, Switzerland), 2019-04-07)
      A new proper generalization of metric called as θ -metric is introduced by Khojasteh et al. (Mathematical Problems in Engineering (2013) Article ID 504609). In this paper, first we prove the Caristi type fixed point theorem ...

    • Coincidence Point Results for Multivalued Suzuki Type Mappings Using θ-Contraction in b-Metric Spaces 

      Saleem, Naeem; Vujaković, Jelena; Baloch, Wali Ullah; Radenović, Stojan (MDPI (Basel, Switzerland), 2019-10-25)
      In this paper, we introduce the concept of coincidence best proximity point for multivalued Suzuki-type α -admissible mapping using θ -contraction in b-metric space. Some examples are presented here to understand the use ...

    • Existence and Unique Coupled Solution in Sb-Metric Spaces by Rational Contraction with Application 

      Vujaković, Jelena; Kishore, Gajula Naveen Venkata; Panda Ranga Rao, Konduru; Radenović, Stojan; Sadik, Shaik (MDPI (Basel, Switzerland), 2019-03-28)
      In this paper, we prove a unique common coupled fixed point theorem for two pairs of w-compatible mappings in Sb -metric spaces. We also furnish an example to support our main result.

    • A new approach to multivalued nonlinear weakly Picard operators 

      Mukheimer, Aiman; Vujaković, Jelena; Hussain, Azhar; Aydi, Hassen; Radenović, Stojan; Yaqoob, Saman (Springer Nature SharedIt, 2019-11-09)
      The notion of nonlinear (Fs,L)-contractive multivalued operators is initiated and some related fixed point results are considered. We also give an example to show the validity of obtained theoretical results. Our results ...

    • New Fixed Point Results on α Lψ -Rational Contraction Mappings in Metric-Like Spaces, 

      Fabiano, Nicola; Nikolić, Nebojša; Fadail, Zaid M.; Paunović, Ljiljana; Radenović, Stojan (Published by Faculty of Sciences and Mathematics, University of Nis, Serbia, 2020-07-08)
      We present some new results for α ψ L−rational contractive and cyclic α ψ L−rational contractive mappings defined in dl−complete metric-like spaces (also known as dislocated metric spaces). We have showed that established ...

    • New results on F-contractions in complete metric spaces 

      Vujaković, Jelena; Kontrec, Nataša; Tošić, Marina; Fabiano, Nicola; Radenović, Stojan (MDPI (Basel, Switzerland), 2021-12-21)
      The main purpose of this paper is to improve, generalize, unify, extend and enrich the recent results established by Dung and Hang (2015), Piri and Kumam (2014, 2016), and Singh et al. (2018). In our proofs, we only use ...

    • On F-Contractions for Weak α-Admissible Mappings in Metric-Like Spaces 

      Vujaković, Jelena; Mitrović, Slobodanka; Mitrović, Zoran; Radenović, Stojan (MDPI (Basel, Switzerland), 2020-09-21)
      In the paper, we consider some fixed point results of F-contractions for triangular α-admissible and triangular weak α-admissible mappings in metric-like spaces. The results on F-contraction type mappings in the context ...

    • On Recent Results Concerning F-Contraction in Generalized Metric Spaces 

      Vujaković, Jelena; Mitrović, Slobodanka; Pavlović, Mirjana; Radenović, Stojan (MDPI (Basel, Switzerland), 2020-05-11)
      In this manuscript we discuss, consider, generalize, improve and unify several recent results for so-called F-contraction-type mappings in the framework of complete metric spaces. We also introduce (φ,F) -weak contraction ...

    • On some F−contraction of Piri-Kumam-Dung type mappings in metric spaces 

      Vujaković, Jelena; Radenović, Stojan (2020-07-15)
      This paper establishes some new results of Piri–Kumam–Dung-type mappings in a complete metric space.Тhe goal was to improve the already published results. Methods: Using the property of a strictly increasing function as ...

    • On Some New Contractive Conditions in Complete Metric Spaces 

      Vujaković, Jelena; Ljajko, Eugen; Pavlović, Mirjana; Radenović, Stojan (MDPI (Basel, Switzerland), 2021-01-07)
      One of the main goals of this paper is to obtain new contractive conditions using the method of a strictly increasing mapping F:(0,+∞)→(−∞,+∞). According to the recently obtained results, this was possible (Wardowski’s ...

    • On Some New Jungck–Fisher–Wardowski Type Fixed Point Results 

      Vujaković, Jelena; Ljajko, Eugen; Radojević, Slobodan; Radenović, Stojan (MDPI (Basel, Switzerland), 2020-12-10)
      Many authors used the concept of F−contraction introduced by Wardowski in 2012 in order to define and prove new results on fixed points in complete metric spaces. In some later papers (for example Proinov P.D., J. Fixed ...

    • On Some New Results in Graphical Rectangular b-Metric Spaces 

      Baradol, Pravin; Vujaković, Jelena; Gopal, Dhananjay; Radenović, Stojan (MDPI (Basel, Switzerland), 2020-04-01)
      In this paper, we provide an approach to establish the Banach contraction principle (for the case λ∈[0,1)) , Edelstein, Reich, and Meir–Keeler type contractions in the context of graphical rectangular b-metric space. The ...

    • Some New Observations on Generalized Contractive Mappings and Related Results in b-Metric-Like Spaces 

      Došenović, Tatjana; De La Sen, Manuel; Paunović, Ljiljana; Rakić, Dušan; Radenović, Stojan (Hindawi, 2021-03-20)
      Abstract: In this paper, we consider, discuss, complement, improve, generalize, and enrich some fixed point results obtained for (β − ψ1 − ψ2)−contractive conditions in ordered b-metric-like spaces. By using our new approach ...

    • Some New Results for Jaggi-W-Contraction-Type Mappings on b-Metric-like Spaces 

      Mitrović, Slobodanka; Parvaneh, Vahid; De la Sen, Manuel; Vujaković, Jelena; Radenović, Stojan (MDPI (Basel, Switzerland), 2021-08-12)
      In this article, we generalize, improve, unify and enrich some results for Jaggi-W-contraction-type mappings in the framework of b-metric-like spaces. Our results supplement numerous methods in the existing literature, and ...

    • Some New Results on F-Contractions in 0-Complete Partial Metric Spaces and 0-Complete Metric-Like Spaces 

      Radenović, Stojan; Paunović, Ljiljana R.; Mirkov, Nikola S. (MDPI, 2021-04-19)
      Within this manuscript we generalize the two recently obtained results of O. Popescu and G. Stan, regarding the F-contractions in complete, ordinary metric space to 0-complete partial metric space and 0-complete metric-like ...

    • Some Remarks and New Results in Ordered Partial b-Metric Spaces 

      Vujaković, Jelena; Aydi, Hassen; Radenović, Stojan; Mukheimer, Aiman (MDPI (Basel, Switzerland), 2019-04-06)
      We improve and generalize some new results in fixed point theory in the context of partial b-metric spaces

    • Some remarks on TAC-contractive mappings in b-metric spaces 

      Mitrović D., Zoran; Radenović, Stojan; Vetro, Francesca; Vujaković, Jelena (Društvo matematičara Srbije, 2018-09-03)
      In this paper we complement and improve fixed point results established on TAC-contractive mappings in the framework of b-metric spaces. Our analysis starts by a recent paper of Babu and Dula [G. V. R. Babu and T. M. ...