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Strong-Weak Nonlinear Bilevel Problems: Existence of Solutions in a Sequential Setting

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Abstract

The paper deals with a strong-weak nonlinear bilevel problem which generalizes the well-known weak and strong ones. In general, the study of the existence of solutions to such a problem is a difficult task. So that, for a strong-weak nonlinear bilevel problem, we first give a regularization based on the use of strict 𝜖-solutions of the lower level problem. Then, via this regularization and under sufficient conditions, we show that the problem admits at least one solution. The obtained result is an extension and an improvement of some recent results appeared recently in the literature for both weak nonlinear bilevel programming problems and linear finite dimensional case.

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Authors and Affiliations

  1. Faculté Polydisciplinaire de Safi, Laboratoire LMC, Université Cadi Ayyad, B.P. 4162, Sidi Bouzid, Safi, Morocco

    Abdelmalek Aboussoror & Fatima Ezzahra Saissi

  2. Université de Limoges, Laboratoire XLIM UMR-CNRS 6172, 123 Avenue Albert Thomas, 87060, Limoges Cedex, France

    Samir Adly & Fatima Ezzahra Saissi

Authors
  1. Abdelmalek Aboussoror
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  2. Samir Adly
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  3. Fatima Ezzahra Saissi
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Correspondence to Samir Adly.

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Aboussoror, A., Adly, S. & Saissi, F.E. Strong-Weak Nonlinear Bilevel Problems: Existence of Solutions in a Sequential Setting. Set-Valued Var. Anal 25, 113–132 (2017). https://doi.org/10.1007/s11228-016-0369-4

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  • DOI: https://doi.org/10.1007/s11228-016-0369-4

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