m-增生算子零点的广义最速下降逼近

使用新的分析技巧研究了对于广义最速下降逼近法收敛到m-增生算子零点的充要条件,所得结果推广了几位作者早期与最近的相应结果．     

关于赋范线性空间中增生算子方程的逼近问题

研究了赋范线性空间中强增生映射和一致增生映射的零点的最速下降法迭代逼近问题,修正了Chidume的一个定理,改进和推广了Chidume和周海云等近期的相应结果.     

任意Banach空间Φ-强伪压缩映射不动点的Ishikawa迭代逼近

文章借助于对偶映射的定义,给出了任意Banach空间中LipschitzΦ-强伪压缩映射不动点的Ishikawa迭代收敛定理的简化证明,并且推广了目前相应的已知结果.     

Lipschitz局部严格伪压缩映象的迭代逼近

设Ｋ是一致光滑Ｂａｎａｃｈ空间Ｋ的非空子集，Ｔ：Ｋ→Ｘ是Ｌｉｐｓｃｈｉｔｚ局部严格伪压缩映象。本文给出一个迭代序列强收敛到Ｔ的唯一不动点，并给出一个涉及Ｌｉｐｓｃｈｉｔｚ局部强增殖映象Ｔ的非线性方程Ｔｘ＝ｆ的解的迭代逼近。     

AN ITERATIVE PROCESS FOR FINDING APPROXIMATE SOLUTIONS TO NONLINEAR EQUATIONS OF STRONGLY ACCRETIVE OPERATORS

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.     

值域有界的一类非线性算子不动点的带误差迭代逼近

设Ｘ为一致光滑实Ｂａｎａｃｈ空间·Ｔ：Ｘ→Ｘ为连续强增生算子·ｆ∈Ｘ·定义算子Ｓ：Ｘ→Ｘ为Ｓｘ＝ｆ－Ｔｘ＋ｘ,ｘ∈Ｘ·设αｎ｛｝∞ｎ＝０与βｎ｛｝∞ｎ＝０为两个给定的实数列在（０,１）中且满足条件：（ⅰ）αｎ→０,βｎ→０（ｎ→∞）·（ⅱ）∑∞ｎ＝０αｎ＝∞·假设ｕｎ｛｝∞ｎ＝０和ｖｎ｛｝∞ｎ＝０为Ｘ中两个序列且满足‖ｕｎ‖＝ｏ（αｎ）,‖ｖｎ‖→０（ｎ→∞）·ｘ０∈Ｘ,迭代序列ｘｎ｛｝定义为：（ＩＳ）ｘｎ＋１＝（１－αｎ）ｘｎ＋αｎＳｙｎ＋ｕｎｙｎ＝（１－βｎ）ｘｎ＋βｎＳｘｎ＋ｖｎ（ｎ≥０）｛若Ｓｘｎ｛｝,Ｓｙｎ｛｝有界,则ｘｎ｛｝强收敛于Ｓ的唯一不动点     

Strong convergence of approximated sequences for nonexpansive mappings in Banach spaces

This paper studies the convergence of the sequence defined by x0∈C,xn 1=αnu (1-αn)Txn,n=0,1,2,…, where 0 ≤αn ≤ 1, limn→∞αn = 0, ∑∞n=0 αn = ∞, and T is a nonexpansive mapping from a nonempty closed convex subset C of a Banach space X into itself. The iterative sequence {xn} converges strongly to a fixed point of T in the case when X is a uniformly convex Banach space with a uniformly Gateaux differentiable norm or a uniformly smooth Banach space only. The results presented in this paper extend and improve some recent results.     

一致平滑Banach空间中一类非线性算子的Ishikawa迭代序列的收敛定理

使用新的技巧,我们得到了连续强增生算子或连续强伪压缩算子的Ｉｓｈｉｋａｗａ迭代序列的强收敛定理,推广或改进了近期相关的结果．     

q-致光滑Banach空间中非线性φ-强伪压缩映射和强增生映射的Ishikawa迭代过程

在q（≥2）一致光滑的实Banach空间中,研究了一类非Lipschitz,非值域有界的φ－强伪压缩映射和φ－强增生映射的Ishikawa迭代收敛问题,所得结果扩展了该领域目前所有的相关结果,因而在目前更具有一般性和广泛性．     

Three-step iterations for nonlinear accretive operator equations

In this paper, we suggest and analyze a three-step iterative scheme for solving nonlinear strongly accretive operator equation Tx=f without continuous condition in a uniformly smooth Banach space. Our results include the Ishikawa, Mann and Noor iterations as special cases. The results presented in this paper improve and extend almost all the current results in the more general setting.     

Banach空间中非扩张映象的黏性逼近方法

借助Banach空间中非扩张映象的黏性逼近方法,得出了非扩张映象迭代序列收敛于其不动点的充分必要条件．本文结果推广和改进了一些人的最新结果．     

Lipschitz局部强增殖算子的非线性方程的解的迭代构造

本文研究p一致光滑Banach空间X中Ishikawa迭代法.设T:X→K是Lipschitz局部强增殖算子,方程Tx=f的解集sol(T)非空.我们证明了sol(T)是一个单点集且Ishikawa序列强收敛到方程Tx=f的唯一解.另行,当T是从X的非空凸子集K到X的Lipschitz局部伪压缩映像且T的不动点集F(T)非空时,我们证明了F(T)是一个单点集且Ishikawa序列强收敛到T的唯一不动点.我们的结果改进和推广了[4]与[5]的结果.     

含k-次增生算子具误差的Ishikawa迭代的收敛性问题

引入k-次增生算子的概念，主要研究了k-次增生算子的带误差的Ishikawa迭代序列的收敛性问题．改进和推广了Chidume的相关结果．     

非扩张映象不动点的迭代算法

设C是具有一致Gateaux可微范数的实Banach空间X中的一非空闭凸子集,T是C中不动点集F(T)≠0的一自映象．假设当t→0时,{Xt}强收敛到T的一不动点z,其中xt是C中满足对任给u∈C,xt=tu+(1-t)Txt的唯一确定元．设{αn},{βn}和{γn}是[0,1]中满足下列条件的三个实数列:(i)αn+βn+γn=1;(ii) limn-∞αn=0和．对任意的x0∈C,设序列{xn}定义为xn+1=αnu+βnxn+γnTxn,则{xn}强收敛到T的不动点．