Some new classes of generalized concave vector-valued functions
Riccardo Cambini · Optimization · 1996
The aim of this paper is to study, in a systematic way, relationships and first-order characterizations among several classes of vector-valued functions which are possible extensions of scalar concave, quasiconcave and pseudoconcave functions. These classes are defined by using three order relations generated by a cone C or the interior of C, or the cone C without the origin.