Common fixed point results for graph preserving mappings in parametric N_b-metric spaces

In this paper, we discuss the existence and uniqueness of points of coincidence and common xed points for a pair of graph preserving mappings in parametric N_b-metric spaces. As some consequences of this study, we obtain several important results in parametric b-metric spaces, parametric S-metric spaces and parametric A-metric spaces. Finally, we provide some illustrative examples to justify the validity of our main result.