Some coincide fixed point results for generalized (ψ,φ) weakly mapping in b_2-metric spaces

:b_2-metric space, as a generalization of both 2-metric and b-metric space introduced by Zead Mustafa in 2014. In this paper we define the notion of almost generalized (ψ,φ) s,a-contractive mapping and we prove some new results. In particular, we extend Theorems 2.1, 2.2 and 2.3 of Ciric et al. in [11] to the setting of b_2-metric spaces. Also, examples are provided to illustrate the results presented herein and Several interesting consequences of our theorems are provided here to illustrate of the obtained results. The findings of the paper are based on generalization and modification of some recently reported theorems in the literature.