JOURNAL OF MATHEMATICAL EXTENSION, no.1, pp.149-177, 2021 (ESCI)
In this paper, we first obtain two weighted identities for twice partially differentiable mappings. Moreover, utilizing these equalities, we establish the weighted Hermite-Hadamard type inequalities and weighted Simpson type inequalities for co-ordinated convex functions in a rectangle from the plane R-2 , respectively. The results given in this paper provide generalizations of some result established in earlier works.