Some Pareto optimality results for nonsmooth multiobjective optimization problems with equilibrium constraints

Document Type : Research Paper

Authors

1 Department of Applied Mathematics, Faculty of Mathematical Sciences, Shahrekord University, Shahrekord, Iran

2 Department of Mathematics, Faculty of Sciences, University of Qom, Qom, Iran

3 Department of Mathematics and Computer Science, University of Qom, Qom, Iran

Abstract

In this paper, we study the nonsmooth multiobjective optimization problems with equilibrium constraints (MOMPEC). First, we extend the Guignard constraint qualification for MOMPEC, and then more constraint qualifications are developed. Also, the relationships between them are investigated. Moreover, we introduce the notion of primal Pareto stationarity and some dual Pareto stationarity concepts for a feasible point of MOMPEC. Some necessary optimality conditions are derived for any Pareto optimality solution of MOMPEC under weak assumptions. Indeed, we just need the objective functions to be locally Lipschitz. Further, we indicate our defined Pareto stationarity concepts are also sufficient conditions under the generalized convexity requirements.

Keywords

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Volume 13, Issue 2
July 2022
Pages 2185-2196
  • Receive Date: 05 November 2021
  • Revise Date: 05 January 2022
  • Accept Date: 21 January 2022