Multiobjective Fractional Symmetric Duality in Mathematical Programming with (C,Gf)-Invexity Assumptions.

In this paper, a new class of (C , G f) -invex functions introduce and give nontrivial numerical examples which justify exist such type of functions. Also, we construct generalized convexity definitions (such as, (F , G f) -invexity, C-convex etc.). We consider Mond–Weir type fractional symmetric dual programs and derive duality results under (C , G f) -invexity assumptions. Our results generalize several known results in the literature. [ABSTRACT FROM AUTHOR]