Abstract
Building upon the subgradient extragradient method proposed by Censor et al., we prove the strong convergence of the iterative sequence generated by a modification of this method by means of the Halpern method. We also consider the problem of finding a common element of the solution set of a variational inequality and the fixed-point set of a quasi-nonexpansive mapping with a demiclosedness property.
Similar content being viewed by others
References
Kassay, G., Kolumbán, J., Páles, Z.: On Nash stationary points. Publ. Math. (Debr.) 54, 267–279 (1999)
Kassay, G., Kolumbán, J., Páles, Z.: Factorization of Minty and Stampacchia variational inequality systems. Interior point methods. Eur. J. Oper. Res. 143, 377–389 (2002)
Kassay, G., Kolumbán, J.: System of multi-valued variational inequalities. Publ. Math. (Debr.) 56, 185–195 (2000)
Kinderlehrer, D., Stampacchia, G.: An Introduction to Variational Inequalities and Their Applications. Academic Press, New York (1980)
Lions, J.-L., Stampacchia, G.: Variational inequalities. Commun. Pure Appl. Math. 20, 493–519 (1967)
Takahashi, W.: Introduction to Nonlinear and Convex Analysis. Yokohama Publishers, Yokohama (2009)
Browder, F.E.: Semicontractive and semiaccretive nonlinear mappings in Banach spaces. Bull. Am. Math. Soc. 74, 660–665 (1968)
Yamada, I., Ogura, N.: Hybrid steepest descent method for variational inequality problem over the fixed point set of certain quasi-nonexpansive mappings. Numer. Funct. Anal. Optim. 25, 619–655 (2004)
Censor, Y., Gibali, A., Reich, S.: A von Neumann alternating method for finding common solutions to variational inequalities. Nonlinear Anal. 75, 4596–4603 (2012)
Censor, Y., Gibali, A., Reich, S., Sabach, S.: Common solutions to variational inequalities. Set-Valued Var. Anal. 20, 229–247 (2012)
Censor, Y., Gibali, A., Reich, S.: Algorithms for the split variational inequality problem. Numer. Algorithms 59, 301–323 (2012)
Kassay, G., Reich, S., Sabach, S.: Iterative methods for solving systems of variational inequalities in reflexive Banach spaces. SIAM J. Optim. 21, 1319–1344 (2011)
Korpelevič, G.M.: An extragradient method for finding saddle points and for other problems. Èkon. Mat. Metody 12, 747–756 (1976) (In Russian)
Censor, Y., Gibali, A., Reich, S.: The subgradient extragradient method for solving variational inequalities in Hilbert space. J. Optim. Theory Appl. 148, 318–335 (2011)
Censor, Y., Gibali, A., Reich, S.: Strong convergence of subgradient extragradient methods for the variational inequality problem in Hilbert space. Optim. Methods Softw. 26, 827–845 (2011)
Censor, Y., Gibali, A., Reich, S.: Extensions of Korpelevich’s extragradient method for the variational inequality problem in Euclidean space. Optimization 61, 1119–1132 (2012)
Halpern, B.: Fixed points of nonexpanding maps. Bull. Am. Math. Soc. 73, 957–961 (1967)
Reich, S.: Strong convergence theorems for resolvents of accretive operators in Banach spaces. J. Math. Anal. Appl. 75, 287–292 (1980)
Bauschke, H.H.: The approximation of fixed points of compositions of nonexpansive mappings in Hilbert space. J. Math. Anal. Appl. 202, 150–159 (1996)
Cegielski, A.: Iterative methods for fixed point problems. In: Hilbert Spaces. Lecture Notes in Mathematics, vol. 2057. Springer, Heidelberg (2012)
Goebel, K., Reich, S.: Uniform Convexity, Hyperbolic Geometry, and Nonexpansive Mappings. Monographs and Textbooks in Pure and Applied Mathematics. Marcel Dekker, New York (1984)
Maingé, P.E.: The viscosity approximation process for quasi-nonexpansive mappings in Hilbert spaces. Comput. Math. Appl. 59, 74–79 (2010)
Aoyama, K., Kimura, Y., Takahashi, W., Toyoda, M.: Approximation of common fixed points of a countable family of nonexpansive mappings in a Banach space. Nonlinear Anal. 67, 2350–2360 (2007)
Xu, H.-K.: Iterative algorithms for nonlinear operators. J. Lond. Math. Soc. (2) 66, 240–256 (2002)
Reich, S.: Constructive techniques for accretive and monotone operators. In: Applied Nonlinear Analysis, Proc. Third Internat. Conf., Univ. Texas, Arlington, TX, 1978, pp. 335–345. Academic Press, New York (1979)
Minty, G.J.: On a “monotonicity” method for the solution of non-linear equations in Banach spaces. Proc. Natl. Acad. Sci. USA 50, 1038–1041 (1963)
Takahashi, W.: Nonlinear Functional Analysis. Yokohama Publishers, Yokohama (2000)
Browder, F.E.: Semicontractive and semiaccretive nonlinear mappings in Banach spaces. Bull. Am. Math. Soc. 74, 660–665 (1968)
Acknowledgements
The authors thank Professor Franco Giannessi and the two referees for their insightful suggestions. The second author is supported by the TRF Research Career Development Grant (RSA5680002).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kraikaew, R., Saejung, S. Strong Convergence of the Halpern Subgradient Extragradient Method for Solving Variational Inequalities in Hilbert Spaces. J Optim Theory Appl 163, 399–412 (2014). https://doi.org/10.1007/s10957-013-0494-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10957-013-0494-2