Ivan, Ginchev; Angelo, Guerraggio; Matteo, Rocca - Facoltà di Economia, Università degli Studi dell'Insubria - 2002
In this paper we introduce a generalized second-order Riemann-type derivative for C 1,1 vector functions and use it to establish necessary and sufficient optimality conditions for vector optimization problems. We show that these conditions are stronger than those obtained by means of the...