$E$-PROPER SADDLE POINTS AND $E$-PROPER DUALITY IN VECTOR OPTIMIZATION WITH SET-VALUED MAPS

Abstract

In this paper, based on a kind of unified proper efficiency named as $E$-Benson proper efficiency, we present $E$-proper saddle points theorems and $E$-proper duality results including as weak duality and strong duality theorems of vector optimization problems with set-valued maps. Our main results unify and extend the cases of proper saddle points and proper duality as well as $\varepsilon$-proper saddle points and $\varepsilon$-proper duality.