On convexity and quasiconvexity of extremal value functions in set optimization
We study different classes of convex and quasiconvex set-valued maps defined by means of the lower-less order relation and the upper-less order relation. The aim of this paper is to formulate necessary and especially sufficient conditions for the convexity/quasiconvexity of extremal value functions. CitationDOI: 10.23952/asvao.3.2021.3.04ArticleDownload View PDF