OPTIMALITY CONDITIONS FOR STRONG VECTOR EQUILIBRIUM PROBLEMS UNDER A WEAK CONSTRAINT QUALIFICATION

摘要

The purpose of this paper is to present necessary and sufficient optimality conditions for a feasible solution to be weakly efficient or Henig weakly efficient solution of a nonconvex vector equilibrium problem with cone constraints. These theorems are based on the quasi-relative interior notion and a very recent separation theorem which involves this notion. Our results deal with some conditions where no previous results are applicable.