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The Tikhonov regularization for equilibrium problems and applications to quasi-hemivariational inequalities

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Abstract

In this paper, we deal with the Tikhonov regularization method for pseudo-monotone equilibrium problems. Under mild conditions of semicontinuity and convexity, we show that strictly pseudo-monotone bifunctions can be also used as regularization bifunctions as well as strongly monotone bifunctions. We extend Berge’s maximum theorem and establish the relationship between quasi-hemivariational inequalities and equilibrium problems. Applications of the Tikhonov regularization method to quasi-hemivariational inequalities are also given.

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Acknowledgments

The authors thank the anonymous referees for the careful reading of this paper and for their useful remarks concerning Theorem 3.1.

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Correspondence to Vicenţiu D. Rădulescu.

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Alleche, B., Rădulescu, V.D. & Sebaoui, M. The Tikhonov regularization for equilibrium problems and applications to quasi-hemivariational inequalities. Optim Lett 9, 483–503 (2015). https://doi.org/10.1007/s11590-014-0765-3

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