• (C , Ψ * , G ) Class of Contractions and Fixed Points in a Metric Space Endowed with a Graph 

      George, Reny; Tamrakar, Ekta; Vujaković, Jelena; Pathak, Hemant Kumar; Velusamy, Selvavinayagam (MDPI (Basel, Switzerland), 2019-05-27)
      In this paper, we introduce the (C,Ψ∗,G) class of contraction mappings using C-class functions and some improved control functions for a pair of set valued mappings as well as a pair of single-valued mappings, and prove ...
    • 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 ...