On Optimality Conditions for Henig Efficiency and Superefficiency in Vector Equilibrium Problems
Do Van Luu, Tran Thi Mai · Numerical Functional Analysis and Optimization · 2018
Necessary optimality conditions for local Henig efficient and superefficient solutions of vector equilibrium problems involving equality, inequality, and set constraints in Banach space with locally Lipschitz functions are established under a suitable constraint qualification via the Michel–Penot subdifferentials. With assumptions on generalized convexity, necessary conditions for Henig efficiency and superefficiency become sufficient ones. Some applications to vector variational inequalities and vector optimization problems are given as well.