实Hilbert空间中一个拟非扩张映射有限族的公共不动点的粘滞逼近算法

本文构造了两种平行算法, 用来解决实Hilbert空间中有限多个拟非扩张映射的公共不动点的问题,这两种算法改进完善了本方向以前所得的结果.     

Banach空间中关于非扩张映射的修改的Mann迭代算法的强收敛定理

该文在Banach空间里引进一种新的修改的Mann算法,来寻求一族无限个非扩张映射的公共元素.在适当条件下,得到了一个强收敛定理.所得结果改进和推广了许多最近的相关结果.     

关于非扩张映射的不动点问题的粘性迭代算法的强收敛定理

该文首先研究吸引非扩张映射的性质,然后在一致光滑Banach空间里,用这些性质研究两个非扩张映射的不动点问题的粘性迭代算法.作为应用,在Banach空间或Hilbert空间里,得到了关于变分不等式问题,不动点问题和均衡问题的强收敛定理.所得结果提高和推广了许多最近的相关结果.     

Hilbert空间中广义平衡问题和不动点问题的粘滞逼近法

在Hilbert空间,我们用粘滞逼近法建立了一迭代序列来逼近两个集合的公共点,这两个集合分别是广义平衡问题的解集和渐进非扩张映射的不动点集.我们表明这一迭代序列强收敛到这两个集合的公共点,而且这一公共点还是一变分不等式的解.用这一结果,还研究了三个强收敛问题和优化问题.     

Viscosity approximation with weak contractions for fixed point problem,equilibrium problem,and variational inequality problem

This paper proposes a modified iterative algorithm using a viscosity approximation method with a weak contraction.The purpose is to find a common element of the set of common fixed points of an infinite family of nonexpansive mappings and the set of a finite family of equilibrium problems that is also a solution to a variational inequality.Under suitable conditions,some strong convergence theorems are established in the framework of Hilbert spaces.The results presented in the paper improve and extend the corresponding results of Colao et al.（Colao,V.,Acedo,G.L.,and Marino,G.An implicit method for finding common solutions of variational inequalities and systems of equilibrium problems and fixed points of infinite family of nonexpansive mappings.Nonlinear Anal.71,2708–2715（2009））,Plubtieng and Punpaeng（Plubtieng,S.and Punpaeng,R.A general iterative method for equilibrium problems and fixed point problems in Hilbert spaces.J.Math.Anal.Appl.336,455–469（2007））,Colao et al.（Colao,V.,Marino,G.,and Xu,H.K.An iterative method for finding common solutions of equilibrium problem and fixed point problems.J.Math.Anal.Appl.344,340–352（2008））,Yao et al.（Yao,Y.,Liou,Y.C.,and Yao,J.C.Convergence theorem for equilibrium problems and fixed point problems of infinite family of nonexpansive mappings.Fixed Point Theory Application 2007,Article ID 64363（2007）DOI 10.1155/2007/64363）,and others.     

Hilbert空间中非扩张映射的广义隐粘性迭代方法

在Hilbert空间框架下,给出并研究了非扩张映射的一类广义的隐粘性迭代方法,在合适的条件下,证明了迭代程序所生成的序列强收敛到非扩张映射的不动点,并且该不动点还是某变分不等式的解.结果是新的,推广和改进了一些最新的结论.     

可数个非扩张映射族公共不动点的收敛

利用投影算子方法提出了一种新的迭代序列,并且证明了该迭代序列在N ST-条件下收敛到可数多个非扩张映射族的公共不动点和变分不等式的解,此结果推广并改进了一些相关结论.     

Approximation of Nearest Common Fixed Point of Nonexpansive Mappings in Hilbert Spaces

The purpose of this paper is to study the convergence problem of the iteration scheme xn＋l = λn＋1y ＋ （1 - λn＋1）Tn＋1xn for a family of infinitely many nonexpansive mappings T1, T2,... in a Hilbert space. It is proved that under suitable conditions this iteration scheme converges strongly to the nearest common fixed point of this family of nonexpansive mappings. The results presented in this paper extend and improve some recent results.     

锥度量空间中扩张映射的不动点定理

在完备的锥度量空间中考虑扩张映射的不动点存在性问题,对满足不同条件的扩张映射,采用不同的迭代方法,得到一些新结果。所得结果推广了一些已知的重要结论。