Abstract
Inspired by some growth conditions used in convex and nonconvex optimization and given a bifunction defined on a nonempty closed subset of a real Hilbert space, we design a Proximal Point Method for finding its equilibria points. Then, we investigate the convergence of this scheme under a regularity metric type assumption and state other metric regularity conditions. The purpose of this short article is mainly to launch new ideas and bring some novelty in this field.
Similar content being viewed by others
References
Al-Homidan, S., Ansari, Q.-H., Yao, J-Ch.: Some generalizations of Ekeland-type variational principle with applications to equilibrium problems and fixed point theory. Nonlinear Anal. 69(1), 126–139 (2008)
Alleche, B., Radulescu, V.D.: The Ekeland variational principle for equilibrium problems revisited and applications. Nonlinear Anal. Real World Appl. 23, 17–25 (2015)
Attouch, H., Bolte, J., Redont, P., Soubeyran, A.: Proximal Alternating minimization and projection methods for nonconvex problems: an approach based on the kurdyka-lojasiewicz inequality. Math. Oper. Res. 35(2), 438–457 (2010)
Attouch, H., Bolte, J.: On the convergence of the proximal algorithm for nonsmooth functions involving analytic features, Mathematical Programming. Ser. B 116(1), 5–16 (2009)
Attouch, H., Bolte, J., Svaiter, B.F.: Convergence of descent methods for semi-algebraic and tame problems: prox- imal algorithms, forward-backward splitting, and regularized Gauss-Seidel methods. Math. Progr. 137(1), 91–129 (2013)
Azé, D., Flam, S.D.: Gradient Methods under Palais-Smale Conditions. Perpignan University, France, Pré-print (2005)
Bento, G.C., Cruz Neto, J.X., Soares Jr, P.A., Soubeyran, A.: Behavioral Traps and the Equilibrium Problem on Hadamard Manifolds. arXiv:1307.7200v3 [math.OC] (2014)
Bento, G.C., Soubeyran, A.: A generalized inexact proximal point method for nonsmooth functions that satisfies kurdyka lojasiewicz inequality. Set Val. Var. Anal. 23(3), 501–517 (2015)
Bianchi, M., Kassay, G., Pini, R.: Existence of equilibria via Ekeland’s principle. J. Math. Anal. Appl. 305(2, 15), 502–512 (2005)
Blum, E., Oettli, W.: From optimization and variational inequalities to equilibriums problems. Math. Stud. 63, 123–145 (1994)
Iusem, A.N., Sosa, W.: On the proximal point method for equilibrium problems in Hilbert spaces. Optimization 59(8), 1259–1274 (2010)
Moudafi, A.: Proximal point algorithm extended for equilibrium problems. J. Nat. Geom. 15, 91–100 (1999)
Moudafi, A.: On finite and strong convergence of a proximal method for equilibrium problems. Num. Funct. Anal. Optim. 28(11–12), 1347–1354 (2007)
Moudafi, A., Théra, M.: Proximal and dynamical approaches to equilibrium problems. Lecture Notes in Economics and Mathematical Systems, 477, Springer, Heidelberg, pp. 187–201 (1999)
Noor, M.A., Noor, KhI: On equilibrium problems. Appl. Math. E-Notes 4, 125–132 (2004)
Noor, M.A.: On a class of nonconvex equilibrium problems. Appl. Math. Comput. 157(3), 653–666 (2004)
Rockafellar, R.T.: Monotone operators and the proximal point algorithm. SIAM J. Control Optim. 14, 877–898 (1976)
Soubeyran, A.: Variational rationality, a theory of individual stability and change: worthwhile and ambidextry behaviors. Pre-print. GREQAM, Aix Marseillle University (2009)
Acknowledgements
The first author wishes to thank Prof. M. Ouladsine, Head of the LSIS Team, for his confidence and support that allowed his transfer to Aix-Marseille University. The authors would also to thank the anonymous referees for their careful reading of the paper, for their comments and suggestions which improved the presentation of the present manuscript.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Moudafi, A., Noor, M.A. A proximal method for equilibrium problems under growth conditions. Afr. Mat. 28, 669–676 (2017). https://doi.org/10.1007/s13370-016-0474-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13370-016-0474-4