Weak convergence theorem for Lipschizian pseudocontraction semigroups in Banach spaces

The purpose of this paper is to study the weak convergence problems of the irnplicity iteration process for Lipschitzian pseudocontraction semigroups in general Banach spaces. The results presented in this paper extend and improve the corresponding results of Zhou [Nonlinear Anal., 68, 2977-2983 （2008）], Chen, et ah [J. Math. Anal. Appl., 314, 701 709 （2006）], Xu and Ori [Numer. Funct. Anal. Optim, 22, 767-773 （2001）] and Osilike [J. Math. Anal. Appl., 294, 73-81 （2004）]. Keywords     

An algorithm for a bilevel problem with equilibrium and fixed point constraints

We prove the solution existence and propose an iterative algorithm for solving equilibrium problems over the common solutions of a monotone equilibrium problem and the fixed points of a strictly pseudocontractive mapping in Hilbert spaces. The algorithm is a combination of the proximal point and Halpern methods. Strong convergence is established.     

Reich一个定理的改进及其应用

本文使用新的分析技巧研究了一致光滑Banach空间中一类增生映像的零点的迭代构造问题, 所得结果改进了Reich早期的一个著名定理.作为应用,导出了连续伪压缩映像的不动点的迭代算法的强收敛定理.     

A note on Stevi?'s iteration method

In the present paper, motivated by Stevi?'s iteration method, we show the stability result of the following unified iterative scheme

xn+1=tnTvn+(1−tn)xn+un     

Iterative Approximation of Fixed Points for Uniformly Continuous and Strongly Pseudocontractive Mappings in Smooth Banach Spaces

§１．　ＩｎｔｒｏｄｕｃｔｉｏｎａｎｄＰｒｅｌｉｍｉｎａｒｉｅｓＬｅｔＸｂｅａｒｅａｌＢａｎａｃｈｓｐａｃｅｗｉｔｈｎｏｒｍｙ·ｙａｎｄｄｕａｌＸ．ＴｈｅｎｏｒｍａｌｉｚｅｄｄｕａｌｉｔｙｍａｐｐｉｎｇｆｒｏｍＸｉｎｔｏ２ＸｉｓｄｅｆｉｎｅｂｙＪ（ｘ）＝｛ｆ∈Ｘ：〈ｘ,ｆ〉＝ｙｘｙ２＝ｙｆｙ２｝,ｗｈｅｒｅ〈·,·〉ｄｅｎｏｔｅｓｔｈｅｇｅｎｅｒａｌｉｚｅｄｄｕａｌｉｔｙｐａｉｒｉｎｇ．Ｉｔｉｓｗｅｌｌ－ｋｎｏｗｎｔｈａｔＸｉｓｕｎｉｆｏｒｍｌｙｓｍｏｏｔｈｉｆａｎｄｏｎｌｙｉｆＪｉｓｓｉ…     

Convergence theorem of common fixed points for Lipschitzian pseudocontraction semigroups in Banach spaces

The purpose of this paper is to study the convergence problems of the implicity iteration process for an asymptotically nonexpansive semigroups in general Banach spaces. The results presented in this paper extend and improve the corresponding results announced by many authors.     

Approximation of fixed points of strongly pseudocontractive maps without Lipschitz assumption

In the present paper, the following result is shown: Let be a real Banach space with a uniformly convex dual , and let be a nonempty closed convex and bounded subset of . Assume that is a continuous strong pseudocontraction. Let and be two real sequences satisfying (i) for all ; (ii) ; and (iii) as Then the Ishikawa iterative sequence generated by

converges strongly to the unique fixed point of .