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Banach空间中伪压缩映象不动点的迭代逼近
引用本文:姚永红,陈汝栋. Banach空间中伪压缩映象不动点的迭代逼近[J]. 数学研究及应用, 2008, 28(1): 169-176
作者姓名:姚永红  陈汝栋
作者单位:Department of Mathematics, Tianjin Polytechnic University, Tianjin 300160, China
摘    要:Let K be a nonempty closed convex subset of a real p-uniformly convex Banach space E and T be a Lipschitz pseudocontractive self-mapping of K with F(T) := {x ∈ K:Tx=x}≠φ. Let a sequence {xn} be generated from x1 ∈ K by xn+1 = anxn,+ bnTyn++ cnun, yn= a′nxn~ + b′nTx,+ c′n,un, for all integers n ≥ 1. Then ‖xn - Txn,‖ → 0 as n→∞. Moreover, if T is completely continuous, then {xn} converges strongly to a fixed point of T.

关 键 词:Banach空间 伪压缩映象不动点 迭代逼近 Ishikawa逼近
收稿时间:2005-09-05
修稿时间:2006-04-12

Approximating Fixed Points of Pseudocontractive Mapping in Banach Spaces
YAO Yong-hong and CHEN Ru-dong. Approximating Fixed Points of Pseudocontractive Mapping in Banach Spaces[J]. Journal of Mathematical Research with Applications, 2008, 28(1): 169-176
Authors:YAO Yong-hong and CHEN Ru-dong
Affiliation:Department of Mathematics, Tianjin Polytechnic University, Tianjin 300160, China;Department of Mathematics, Tianjin Polytechnic University, Tianjin 300160, China
Abstract:Let $K$ be a nonempty closed convex subset of a real p-uniformly convex Banach space $E$ and $T$ be a Lipschitz pseudocontractive self-mapping of $K$ with $F(T):={xin K: Tx=x}neq emptyset$. Let a sequence ${x_n}$ be generated from $x_1in K$ by $x_{n+1}=a_nx_n+b_nTy_n+c_nu_n$, $y_n=a'_nx_n+b'_nTx_n+c^{'}_nv_n$ for all integers $ngeq 1$. Then $|x_n-Tx_n|rightarrow 0$ as $nrightarrow infty$. Moreover, if $T$ is completely continuous, then ${x_n}$ converges strongly to a fixed point of $T$.
Keywords:pseudocontractive mappings   p-uniformly convex Banach spaces   Ishikawa iterationprocess with errors.
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