ON THE UPPER SEMICONTINUITY OF SOLUTION MAPPINGS FOR PARAMETRIC WEAK VECTOR BILEVEL EQUILIBRIUM PROBLEMS

Abstract

This paper examines parametric weak vector bilevel equilibrium problems. The sufficient conditions of upper semicontinuity, Hausdorff upper semicontinuity, and closedness of solution mappings for this problem were established. Our main results, Theorme 3.1 and Theorem 3.5 are new. Some examples are given to illustrate the results.