Abstract
In this paper, we introduce and study a relaxed extragradient method for finding solutions of a general system of variational inequalities with inverse-strongly monotone mappings in a real Hilbert space. First, this system of variational inequalities is proven to be equivalent to a fixed point problem of nonexpansive mapping. Second, by using the demi-closedness principle for nonexpansive mappings, we prove that under quite mild conditions the iterative sequence defined by the relaxed extragradient method converges strongly to a solution of this system of variational inequalities. In addition, utilizing this result, we provide some applications of the considered problem not just giving a pure extension of existing mathematical problems.
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References
Browder FE, Petryshyn WV (1967) Construction of fixed points of nonlinear mappings in Hilbert Spaces. J Math Anal Appl 20: 197–228
Goebel K, Kirk WA (1990) Topics on metric fixed-point theory. Cambridge University Press, Cambridge
Korpelevich GM (1976) An extragradient method for finding saddle points and for other problems. Ekon Mate Metody 12: 747–756
Liu F, Nashed MZ (1998) Regularization of nonlinear ill-posed variational inequalities and convergence rates. Set-Value Analy 6: 313–344
Nadezhkina N, Takahashi W (2006) Weak convergence theorem by an extragradient method for nonexpansive mappings and monotone mappings. J Optim Theory Appl 128: 191–201
Osilike MO, Igbokwe DI (2000) Weak and strong convergence theorems for fixed points of pseudocontractions and solutions of monotone type operator equations. Comput Math Appl 40: 559–567
Suzuki T (2005) Strong convergence of krasnoselskii and mann’s type sequences for one-parameter nonexpansive semigroups without bochner integrals. J Math Anal Appl 305: 227–239
Takahashi W, Toyoda M (2003) Weak convergence theorems for nonexpansive mappings and monotone mappings. J Optim Theory Appl 118: 417–428
Verma RU (1999) On a new system of nonlinear variational inequalities and associated iterative algorithms. Math Sci Res, Hot-Line 3(8): 65–68
Verma RU (2001) Iterative algorithms and a new system of nonlinear quasivariational inequalities. Adv Nonlinear Var Inequal 4(1): 117–124
Xu HK (2004) Viscosity approximation methods for nonexpansive mappings. J Math Anal Appl 298: 279–291
Yao JC (1994) Variational inequalities and generalized monotone operators. Math Opera Res 19: 691–705
Yao JC, Chadli O (2005) Pseudomonotone complementarity problems and variational inequalities. In: Crouzeix JP, Haddjissas N, Schaible S (eds) Handbook of generalized convexity and monotonicity. pp 501–558
Yao Y, Yao JC (2007) On modified iterative method for nonexpansive mappings and monotone mappings. Appl Math Comput 186: 1551–1558
Zeng LC, Yao JC (2006) Strong convergence theorem by an extragradient method for fixed point problems and variational inequality problems. Taiwan J Math 10: 1293–1303
Zeng LC, Schaible S, Yao JC (2005) Iterative algorithm for generalized set-valued strongly nonlinear mixed variational-like inequalities. J Optim Theory Appl 124: 725–738
Zeng LC, Wong NC, Yao JC (2006) Strong convergence theorems for strictly pseudocontractive mappings of Browder-Petryshyn type. Taiwan J Math 10(4): 837–849
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L.-C. Ceng’s research was partially supported by the National Science Foundation of China (10771141), Ph.D. Program Foundation of Ministry of Education of China (20070270004), and Science and Technology Commission of Shanghai Municipality grant (075105118).
J.-C. Yao’s research was partially supported by a grant from the National Science Council.
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Ceng, LC., Wang, Cy. & Yao, JC. Strong convergence theorems by a relaxed extragradient method for a general system of variational inequalities. Math Meth Oper Res 67, 375–390 (2008). https://doi.org/10.1007/s00186-007-0207-4
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DOI: https://doi.org/10.1007/s00186-007-0207-4
Keywords
- Nonexpansive mapping
- Common fixed point
- Demi-closedness principle
- Inverse-strongly monotone mapping
- General system of variational inequalities