existence of solutions of generalized vector equilibrium problems in reflexive banach spaces

in this paper, a generalized vector equilibrium problem with set-valued maps defined on a reflexive banach space is considered. by using the recession method, we first give the conditions under which the solution set is non-empty, convex and weakly compact, and then extend it to the strong generalized vector equilibrium problem. this facilitates generalizing and modifying various existence theorems. furthermore, the topological properties of the solution set are studied and it is shown that the solution set includes some boundary points.