Integral Inequalities for Two-Dimensional $pq$-Convex Functions

Muhammad Aslam Noor, Muhammad Uzair Awan, Khalida Inayat Noor

In this paper, we introduce the concept of two dimensional $pq$-convex functions. We establish several new Hermite--Hadamard inequalities for two dimensional $pq$-convex functions. Some special cases are also discussed. Results obtained in this paper can be viewed as significant extensions of the previously known results.