In this paper, we provide sufficient conditions entailing the existence of weak sharp efficient points of a multiobjective optimization problem. The approach uses variational analysis techniques, like regularity and subregularity of the diagonal subdifferential map related to a suitable scalar equilibrium problem naturally associated to the multiobjective optimization problem.
- Diagonal subdifferential operator
- Metric subregularity
- Multiobjective optimization problem
- Weak sharp efficient point