on nonsmooth (φ, ρ)-invex multiobjective programming in finite-dimensional euclidean spaces

In this paper, a nonconvex nonsmooth multiobjective programming problem with both inequality and equality constraints is considered. under nondifferentiable (φ, ρ)-invexity notion, optimality conditions and duality results in the sense of mond- weir are established for such nonsmooth vector optimization problems. it turns out that the results developed here under (φ, ρ)-invexity are applicable for a larger class of multiobjective programming problems than under generalized convexity notions existing in the literature.