... Solutions in Multiobjective Optimization ProblemsYing Gao,1Xinmin Yang,1and Heung Wing Joseph Lee21Department of Mathematics, Chongqing Normal University, Chongqing 400047, China2Department ... Canada, 1992.23 T. Tanaka, “A new approach to approximation of solutions in vector optimization problems,” in Hindawi Publishing CorporationJournal of Inequalities and ApplicationsVolume 2010, ... int C and cl C referred to as the interior and the closure of the set C, respectively. A setD ⊂ Rnis said to be a cone if cone D D. We say that the cone D is solid if int D/ ∅,andpointed...