Invariant-point theorems and existence of solutions to optimization-related problems

  • Authors:

  • Phan Quoc Khanh;Vo Si Long

  • Affiliations:

  • Department of Mathematics, International University of Hochiminh City, Hochiminh City, Vietnam;Department of Mathematics, Cao Thang College of Technology, Hochiminh City, Vietnam

  • Venue:
  • Journal of Global Optimization
  • Year:
  • 2014

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Abstract

To consider existence of solutions to various optimization-related problems, we first develop some equivalent versions of invariant-point theorems. Next, they are employed to derive sufficient conditions for the solution existence for two general models of variational relation and inclusion problems. We also prove the equivalence of these conditions with the above-mentioned invariant-point theorems. In applications, we include consequences of these results to a wide range of particular cases, from relatively general inclusion problems to classical results as Ekeland's variational principle, and practical situations like traffic networks and non-cooperative games, to illustrate application possibilities of our general results. Many examples are provided to explain advantages of the obtained results and also to motivate in detail our problem settings.