Three-step iterations for nonexpansive mappings and inverse-strongly monotone mappings |
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Authors: | Meijuan Shang Yongfu Su Xiaolong Qin |
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Affiliation: | (1) Department of Mathematics, Tianjin Polytechnic University, Tianjin, 300160, China;(2) Department of Mathematics, Shijiazhuang University, Shijiazhuang, 050035, China;(3) Department of Mathematics, Tianjin Polytechnic University, Tianjin, 300160, China;(4) Department of Mathematics and the Research Institute of Natural Sciences, Gyeongsang National University, Chinju, 660-701, Korea |
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Abstract: | This paper introduces a three-step iteration for finding a common element of the set of fixed points of a nonexpansive mapping and the set of solutions of the variational inequality for an inverse-strongly monotone mapping by viscosity approximation methods in a Hilbert space. The authors show that the iterative sequence converges strongly to a common element of the two sets, which solves some variational inequality. Subsequently, the authors consider the problem of finding a common fixed point of a nonexpansive mapping and a strictly pseudo-contractive mapping and the problem of finding a common element of the set of fixed points of a nonexpansive mapping and the set of zeros of an inverse-strongly monotone mapping. The results obtained in this paper extend and improve the corresponding results announced by Nakajo, Takahashi, and Toyoda. This research is supported by the National Natural Science Foundation of China under Grant No. 10771050. |
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Keywords: | Inverse-strongly monotone mapping metric projection nonexpansive mapping variational inequality |
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