Interval Valued Vector Variational Inequalities and Vector Optimization Problems via Convexificators

Abstract

In this paper, we consider interval-valued vector optimization problems (IVOP) and derive their relationships to interval vector variational inequalities (IVV I) of Minty and Stampacchia type in terms of convexificators and LU-efficient solution of (IVOP) using LU-convexity assumption. Furthermore, we consider weak versions of (IVV I) of Minty and Stampacchia type and find the relationships between weak versions of (IVV I) of Minty and Stampacchia type and weakly LU-efficient solution of (IVOP). The results presented in this paper extend and generalized some existing results in the literature.