Journal of Mathematical Inequalities · Volume 12, Issue 4 Inequalities for the weighted mean of r-preinvex functions on an invex set 12-84 Pages 1097-1106 DOI 10.7153/jmi-2018-12-84 Downloads Short PDF Full PDF PNG Authors Dah-Yan Hwang Sever Silvestru Dragomir Keywords extended means invex set r-convex r-preinvex Hermite-Hadamard inequality Subject classes 26D15 90C25