Abstract
In this paper, using Halpern type iteration, we prove a strong convergence theorem for finding a common element of the set of common fixed points for a finite family of demimetric mappings and the set of common solutions of variational inequality problems for a finite family of inverse strongly monotone mappings in a Hilbert space. Using this result, we obtain well-known and new strong convergence theorems in a Hilbert space.
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References
Alsulami, S.M., Takahashi, W.: The split common null point problem for maximal monotone mappings in Hilbert spaces and applications. J. Nonlinear Convex Anal. 15, 793–808 (2014)
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)
Browder, F.E.: Nonlinear maximal monotone operators in Banach spaces. Math. Ann. 175, 89–113 (1968)
Browder, F.E., Petryshyn, W.V.: Construction of fixed points of nonlinear mappings in Hilbert spaces. J. Math. Anal. Appl. 20, 197–228 (1967)
Halpern, B.: Fixed points of nonexpanding maps. Bull. Am. Math. Soc. 73, 957–961 (1967)
Igarashi, T., Takahashi, W., Tanaka, K.: Weak convergence theorems for nonspreading mappings and equilibrium problems. In: Akashi, S., Takahashi, W., Tanaka, T. (eds.) Nonlinear Analysis and Optimization, pp. 75–85. Yokohama Publishers, Yokohama (2008)
Itoh, S., Takahashi, W.: The common fixed point theory of singlevalued mappings and multivalued mappings. Pac. J. Math. 79, 493–508 (1978)
Lopez, G., Martin-Marquez, V., Xu, H.-K.: Halpern’s iteration for nonexpansive mappings. Contemp. Math. 513, 211–231 (2010)
Maruyama, T., Takahashi, W., Yao, M.: Fixed point and mean ergodic theorems for new nonlinear mappings in Hilbert spaces. J. Nonlinear Convex Anal. 12, 185–179 (2011)
Kocourek, P., Takahashi, W., Yao, J.-C.: Fixed point theorems and weak convergence theorems for generalized hybrid mappings in Hilbert spaces. Taiwan. J. Math. 14, 2497–2511 (2010)
Kohsaka, F., Takahashi, W.: Existence and approximation of fixed points of firmly nonexpansive-type mappings in Banach spaces. SIAM. J. Optim. 19, 824–835 (2008)
Kohsaka, F., Takahashi, W.: Fixed point theorems for a class of nonlinear mappings related to maximal monotone operators in Banach spaces. Arch. Math. (Basel) 91, 166–177 (2008)
Maingé, P.E.: Strong convergence of projected subgradient methods for nonsmooth and nonstrictly convex minimization. Set-Valued Anal. 16, 899–912 (2008)
Marino, G., Xu, H.-K.: Weak and strong convergence theorems for strich pseudo-contractions in Hilbert spaces. J. Math. Anal. Appl. 329, 336–346 (2007)
Nadezhkina, N., Takahashi, W.: Strong convergence theorem by hybrid method for nonexpansive mappings and Lipschitz-continuous monotone mappings. SIAM J. Optim. 16, 1230–1241 (2006)
Takahashi, W.: Nonlinear Functional Analysis. Yokohama Publishers, Yokohama (2000)
Takahashi, W.: Introduction to Nonlinear and Convex Analysis. Yokohama Publishers, Yokohama (2009)
Takahashi, W.: Fixed point theorems for new nonlinear mappings in a Hilbert space. J. Nonlinear Convex Anal. 11, 79–88 (2010)
Takahashi, W.: The split common fixed point problem and strong convergence theorems by hybrid methods in two Banach spaces. J. Nonlinear Convex Anal. 17, 1051–1067 (2016)
Takahashi, W.: The split common fixed point problem and the shrinking projection method in Banach spaces. J. Convex Anal. (2017) (to appear)
Takahashi, W., Wen, C.-F., Yao, J.-C.: The shrinking projection method for a finite family of demimetric mappings with variational inequality problems in a Hilbert space. Fixed Point Theory (2017) (to appear)
Takahashi, W., Wong, N.-C., Yao, J.-C.: Weak and strong mean convergence theorems for extended hybrid mappings in Hilbert spaces. J. Nonlinear Convex Anal. 12, 553–575 (2011)
Takahashi, W., Yao, J.-C., Kocourek, K.: Weak and strong convergence theorems for generalized hybrid nonself-mappings in Hilbert spaces. J. Nonlinear Convex Anal. 11, 567–586 (2010)
Xu, H.K.: Another control condition in an iterative method for nonexpansive mappings. Bull. Aust. Math. Soc. 65, 109–113 (2002)
Acknowledgements
The author was partially supported by Grant-in-Aid for Scientific Research No. 15K04906 from Japan Society for the Promotion of Science.
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Takahashi, W. Strong convergence theorem for a finite family of demimetric mappings with variational inequality problems in a Hilbert space. Japan J. Indust. Appl. Math. 34, 41–57 (2017). https://doi.org/10.1007/s13160-017-0237-0
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DOI: https://doi.org/10.1007/s13160-017-0237-0
Keywords
- Common fixed point
- Demimetric mapping
- Variational inequality problem
- Metric projection
- Halpern iteration