Weak and strong convergence of Krasnoselski-Mann iteration for hierarchical fixed point problems

被引:61
作者
Yao, Yonghong [1 ]
Liou, Yeong-Cheng [2 ]
机构
[1] Tianjin Polytech Univ, Dept Math, Tianjin 300160, Peoples R China
[2] Cheng Shiu Univ, Dept Informat Management, Kaohsiung 833, Taiwan
关键词
D O I
10.1088/0266-5611/24/1/015015
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
This paper deals with a method for approximating a solution of the following fixed point problem: find (x) over tilde is an element of H; (x) over tilde = ( proj(Fix(T)) center dot P) (x) over tilde, where H is a Hilbert space, P and T are two nonexpansive mappings on a closed convex subset C and projFix( T) denotes the metric projection on the set of fixed points of T. First, we prove a weak convergence theorem which extends and improves a recent result announced by Moudafi ( 2007 Inverse Problems 23 1635 - 40). Secondly, when P is a contraction, a special case of nonexpansive mappings, we prove a strong convergence result under different restrictions on parameters for solving the above fixed point problem.
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页数:8
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