MOND-WEIR DUALITIES WITH LAGRANGIANS FOR MULTIOBJECTIVE FRACTIONAL AND NON-FRACTIONAL VARIATIONAL PROBLEMS

Based on the normal efficiency conditions for a multiobjective nonfractional variational problem, we consider fractional duals of generalized Mond- Weir type and fractional Mond-Weir-Zalmai type. Under some assumptions of (ρ, b)-quasiinvexity, weak, direct and converse duality theorems are stated in various variants.