A SEPARATION APPROACH TO VECTOR QUASI-EQUILIBRIUM PROBLEMS: SADDLE POINT AND GAP FUNCTION
Giandomenico Mastroeni, Barbara Panicucci, Mauro Passacantando, Jen‐Chih Yao · Taiwanese Journal of Mathematics · 2009
The image space approach is applied to the study of vector quasiequilibrium problems. Exploiting separation arguments in the image space, Lagrangian-type optimality conditions and gap functions for vector quasiequilibrium problems are derived.