“…Because multiobjective optimization problems arise in different scientific applications, many researches have focused on developing optimality conditions B Tadeusz Antczak tadeusz.antczak@wmii.uni.lodz.pl 1 Faculty of Mathematics and Computer Science, University of Łódź, Banacha 22, 90-238 Łódź, Poland and duality results for such mathematical programming problems and also methods for their solution. The available literature on optimality conditions and various types of duality for multiobjective programming problems is very rich (see, for example, several monographs on multiobjective programming which have been published in recent past, that is, Chen et al 2005;Chankong and Haimes 1983;Jahn 2004;Luc 1989;Miettinen 1999;Mishra et al 2016;Sawaragi et al 1985;Yu 1985).…”