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Iterative Approximation with Errors for Generalized Set-Valued Strongly Accretive Mapping in Banach Spaces
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作者 张勇 《Journal of Southwest Jiaotong University(English Edition)》 2007年第1期70-74,共5页
A new concept of generalized set-valued strongly accretive mappings in Banach spaces was given and some strong convergence theorems of Ishikawa and Mann iterative process with errors approximation methods by Huang et ... A new concept of generalized set-valued strongly accretive mappings in Banach spaces was given and some strong convergence theorems of Ishikawa and Mann iterative process with errors approximation methods by Huang et al. was proved. The results presented in this paper improve and extend the earlier results obtained by Huang et al. 展开更多
关键词 Generalized set-valued strongly accretive mappings Ishikawa and Mann iterative processes with errors q-Uniformly Smooth Banach spaces Generalized duality mapping
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AN ITERATIVE PROCESS FOR FINDING APPROXIMATE SOLUTIONS TO NONLINEAR EQUATIONS OF STRONGLY ACCRETIVE OPERATORS 被引量:3
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作者 曾六川 《Numerical Mathematics A Journal of Chinese Universities(English Series)》 SCIE 1997年第2期132-141,共10页
In this paper, we investigate the Ishikawa iteration process in a p-uniformly smooth Banach space X. We prove that the Ishikawa iteration process converges strongly to the unique solution of the equation Tx=f when T i... In this paper, we investigate the Ishikawa iteration process in a p-uniformly smooth Banach space X. We prove that the Ishikawa iteration process converges strongly to the unique solution of the equation Tx=f when T is a Lipschitzian and strongly accretive operator frow X to X, or to the unique fixed point of T when T is a Lipschitzian and strictly pseudocontractive mapping from a nonempty closed convex subset K of X into itself. Our results are the extension and improvements of the earlier and recent results in this field. 展开更多
关键词 strongly accretive operators STRICTLY pseudocontractive mapping. p-vniformly SMOOTH BANACH space.
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ITERATIVE SOLUTION OF NONLINEAR EQUATIONS WITH STRONGLY ACCRETIVE OPERATORS IN BANACH SPACES 被引量:1
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作者 周海云 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1999年第3期282-289,共8页
Let X be a real Banach space with a uniformly convex dual X*. Let T: X a X be a Lipschitzian and strongly accretive mapping with a Lipschitzian constant L greater than or equal to 1 and a strongly accretive constant k... Let X be a real Banach space with a uniformly convex dual X*. Let T: X a X be a Lipschitzian and strongly accretive mapping with a Lipschitzian constant L greater than or equal to 1 and a strongly accretive constant k epsilon (0,1). Let {alpha(n)} and {beta(n)} be two real sequences in [0,1] satisfying: (i) alpha(n) --> 0 as n --> infinity (ii) beta(n) < k(1 - k)/L(1 + L), for all n greater than or equal to 0; (iii) Pi(infinity) alpha(n) = infinity Set Sx = f - Tx + x, For All x epsilon X. Assume that {u(n)}(n=0)(infinity) and {v(n)}(n=0)(infinity) be two sequences in X satisfying parallel to u(n) parallel to = o(alpha(n)) and nu(n) --> 0 as n --> infinity. For arbitrary x(0) epsilon X, the iteration sequence {x(n)} is defined by (IS)(I) {x(n+1) = (1 - alpha(n))x(n) + alpha(n)Sy(n) + u(n), {y(n) = (1 - beta(n)) x(n) + beta(n)Sx(n) + v(n) (n greater than or equal to 0) then {x(n)} converges strongly to the unique solution of the equation Tx = f. related result deals with iterative approximation of fixed points of phi-hemicontractive mappings. 展开更多
关键词 Ishikawa iteration with errors strongly accretive mapping phi-hemicontractive mapping
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Iterative Approximation of Fixed Points for Uniformly Continuous and Strongly Pseudocontractive Mappings in Smooth Banach Spaces
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作者 周海云 《Chinese Quarterly Journal of Mathematics》 CSCD 1999年第2期42-46, ,共5页
With an inequality and some analysis techniques,iterative approximation of fixed points for uniformly continuous and strongly pseudocontractive mappings in smooth Banach spaces is studied,and the recent corresponding ... With an inequality and some analysis techniques,iterative approximation of fixed points for uniformly continuous and strongly pseudocontractive mappings in smooth Banach spaces is studied,and the recent corresponding results of Chidume are improved. 展开更多
关键词 Ishikawa iteration process strong pseudocontraction strongly accretive mapping smooth Banach space
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Three-step Iterations with Errors for Nonlinear Strongly Accretive Operator Equations 被引量:2
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作者 Ke Su 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2005年第4期565-570,共6页
In this paper, we suggest and analyse a three-step iterative scheme with errors for solving nonlinear strongly accretive operator equation Tx = f without the Lipshitz condition. The results presented in this paper imp... In this paper, we suggest and analyse a three-step iterative scheme with errors for solving nonlinear strongly accretive operator equation Tx = f without the Lipshitz condition. The results presented in this paper improve and extend current results in the more general setting. 展开更多
关键词 Three-step iteration process with errors strongly accretive mapping strongly pseudo-contractive mapping uniformly smooth Banach space
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赋范线性空间中一类算子的不动点逼近问题 被引量:4
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作者 周海云 刘立红 高改良 《应用泛函分析学报》 CSCD 2006年第2期126-129,共4页
使用新的分析技巧研究了一类φ-强伪压缩影像的不动点和φ-强增生影像的零点的迭代逼近问题,推广并改进了许多相应的结果.
关键词 ψ-强伪压缩影像 ψ-强增生影像 最速下降迭代法 强收敛
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关于增生和伪压缩映象迭代程序的稳定性问题 被引量:1
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作者 田有先 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 2001年第5期653-657,共5页
研究了增生和伪压缩映象迭代程序的一类新的稳定性问题 ,其结果是改进和发展了OsiliueMO 。
关键词 渐近稳定性 T-稳定性 几乎T-稳定性 增生映象 强伪压缩映象 迭代序列
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Banach空间中的相对非扩张映射和变分包含的强收敛定理
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作者 刘英 陈永利 王娴 《应用数学》 CSCD 北大核心 2008年第2期366-372,共7页
这篇论文主要考虑了相对非扩张映射的不动点问题和关于逆强增生映射和m-增生映射的变分包含问题;我们建立了一类新的迭代方法来逼近这两个问题的公共解,证明了这一迭代序列强收敛到这两个问题的公共解.
关键词 广义投影 逆强增生映射 相对非扩张映射 变分包含 强收敛
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Hilbert空间中一类伪压缩型变分包含解的迭代逼近
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作者 阿力非日 何中全 《绵阳师范学院学报》 2011年第5期4-11,43,共9页
在Hilbert空间中引入和研究了关于(A,η)-单调算子的一类伪压缩型变分包含问题,并证明了这类变分包含问题在实的Hilbert空间中给出了用于求这类变分包含解解的带误差的Ishikawa迭代程序的收敛性分析。该文的工作改进和推广了文献[1][4]... 在Hilbert空间中引入和研究了关于(A,η)-单调算子的一类伪压缩型变分包含问题,并证明了这类变分包含问题在实的Hilbert空间中给出了用于求这类变分包含解解的带误差的Ishikawa迭代程序的收敛性分析。该文的工作改进和推广了文献[1][4][5]中已知的相关结果。 展开更多
关键词 变分包含 k-次伪压缩 m-增生映像 带误差的Ishikawa迭代 (A η)-单调算子 强性收敛
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一类Φ-强增生算子方程解带误差的Ishikawa迭代逼近 被引量:3
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作者 张菊 郑锋 《西华师范大学学报(自然科学版)》 2007年第2期154-157,176,共5页
在任意实Banach空间中引入了一类Φ-强增生算子的概念,提出了一个新的带误差的Ishikawa迭代序列,研究了实Banach空间中一类强增生算子方程解的带误差的Ishikawa迭代序列的收敛性问题,这些结果推广和改进了最新文献相应的结果.
关键词 φ-强增生 强收敛 ISHIKAWA迭代 集值映射
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强伪压缩映射的不动点性质 被引量:2
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作者 崔云安 朱鹏 王萍 《哈尔滨理工大学学报》 CAS 北大核心 2020年第4期141-145,共5页
研究了Banach空间的强伪压缩映像和增生算子不动点的迭代格式,给出一个新的三步Ishikawa迭代。证明了该迭代格式强收敛强伪压缩映像或增生算子的不动点。同时,将此结果推广到n步的Ishikawa迭代。
关键词 强伪压缩映射 不动点性质 ISHIKAWA迭代 增生算子
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φ-强增生型变分包含的Ishikawa迭代序列强收敛的充要条件 被引量:2
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作者 薛祖华 顾正刚 《应用泛函分析学报》 CSCD 2010年第1期91-96,共6页
研究Banach空间中φ-强增生型变分包含问题,在实的自反的光滑Banach空间中,证明了这类变分包含问题解得存在唯一性,并给出Ishikawa迭代序列{xn}强收敛的充要条件.
关键词 变分包含 Φ-强增生映象 修改的Ishikawa迭代序列 不动点
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Chidume的公开问题及不动点定理 被引量:1
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作者 任晓 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 1998年第4期505-508,共4页
设X是一个实Banach空间,X是一致凸共轭空间,K是X的非空有界闭凸集.T:K→K是一强伪压缩映象.如果Fix(T)≠,则对任x0∈X,Mann迭代{xn}:xn+1=(1-αn)xn+αnTxn(n≥0)强收... 设X是一个实Banach空间,X是一致凸共轭空间,K是X的非空有界闭凸集.T:K→K是一强伪压缩映象.如果Fix(T)≠,则对任x0∈X,Mann迭代{xn}:xn+1=(1-αn)xn+αnTxn(n≥0)强收敛于T的唯一不动点.其中αn∈(0,1),∑+∞n=0αn=+∞,αn→0(n→+∞).还证明了另一个Ishikawa迭代定理,这两个定理结果推广了Chidume等人的工作. 展开更多
关键词 正规对偶映象 巴拿赫空间 不动点定理
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A system of general nonlinear variational inclusions in Banach spaces
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作者 Xieping DING SALAHUDDIN 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2015年第12期1663-1672,共10页
A new system of general nonlinear variational inclusions is introduced and studied in Banach spaces. An iterative algorithm is developed and analyzed by use of the resolvent operator techniques to find the approximate... A new system of general nonlinear variational inclusions is introduced and studied in Banach spaces. An iterative algorithm is developed and analyzed by use of the resolvent operator techniques to find the approximate solutions of the system of general nonlinear variational inclusions involving different nonlinear operators in uniformly smooth Banach spaces. 展开更多
关键词 system of general nonlinear variational inclusions strongly accretive mapping relaxed accretive mapping resolvent operator uniformly smooth Banach space
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一类广义Lipschitz非线性算子的带误差的Ishikawa迭代程序 被引量:34
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作者 倪仁兴 《数学学报(中文版)》 SCIE CSCD 北大核心 2001年第4期701-712,共12页
借助于周海云和陈东青[4]新近引入的广义Lipschitz概念,研究了实Banach空间中广义Lipschitz  -强伪压缩算子的不动点和广义Lipschitz -强增算子方程解的迭代逼近问题,所得结果改进和扩展了近... 借助于周海云和陈东青[4]新近引入的广义Lipschitz概念,研究了实Banach空间中广义Lipschitz  -强伪压缩算子的不动点和广义Lipschitz -强增算子方程解的迭代逼近问题,所得结果改进和扩展了近期许多相关的结果,并部分地回答了周海云[3]提出的一个问题. 展开更多
关键词 广义Lipschitz条件 Banach空间 φ-强伪压缩算子 Φ-强增生算子 不动点 非线性算子 迭代逼近 算子方程 迭代程序 ISHIKAWA
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