a generalized form of the hermite-hadamard-fejer type inequalities involving fractional integral for co-ordinated convex functions

recently, a general class of the hermit-hadamard-fejer inequality on convex functions is studied in [h. budak, march 2019, 74:29, results in mathematics]. in this paper, we establish a generalization of hermit-hadamard-fejer inequality for fractional integral based on co-ordinated convex functions. our results generalize and improve several inequalities obtained in earlier studies.