Difference equations related to majorization theorems via Montgomery identity and Green’s functions with application to the Shannon entropy

In this paper we give generalized results of a majorization inequality by using extension of the Montgomery identity and newly defined Green’s functions (Mehmood et al. in J. Inequal. Appl. 2017(1):108, 2017 ). We obtain a generalized majorization theorem for the class of n -convex functions. We use Csiszár f -divergence and generalized majorization-type inequalities to obtain new generalized results. We further discuss our obtained generalized results in terms of the Shannon entropy and the Kullback–Leibler distance.