ABSTRACT
In this paper, we prove some results concerning the existence of the Lagrange multipliers for set optimization problems. Moreover, we indicate how these results may be applied to provide some optimality conditions for weak vector equilibrium problems.
Acknowledgements
The authors are grateful to the Editor-in-chief, the Associate Editor as well as the two anonymous referees for their helpful suggestions and comments.
Disclosure statement
No potential conflict of interest was reported by the authors.