An extragradient-like approximation method for variational inequalities and fixed point problems

作者：Ceng, Lu-Chuan; Ansari, Qamrul Hasan; Wong, Ngai-Ching^*; Yao, Jen-Chih

来源：Fixed Point Theory and Applications, 2011, 2011(1): 22.

DOI：10.1186/1687-1812-2011-22

• extragradient-like approximation method
• modified Mann iteration process
• variational inequality
• asymptotically strict pseudocontractive mapping in the intermediate sense
• fixed point
• monotone mapping
• strong convergence
• demiclosedness principle

The purpose of this paper is to investigate the problem of finding a common element of the set of fixed points of an asymptotically strict pseudocontractive mapping in the intermediate sense and the set of solutions of a variational inequality problem for a monotone and Lipschitz continuous mapping. We introduce an extragradient-like iterative algorithm that is based on the extragradient-like approximation method and the modified Mann iteration process. We establish a strong convergence theorem for two sequences generated by this extragradient-like iterative algorithm. Utilizing this theorem, we also design an iterative process for finding a common fixed point of two mappings, one of which is an asymptotically strict pseudocontractive mapping in the intermediate sense and the other taken from the more general class of Lipschitz pseudocontractive mappings. 1991 MSC: 47H09; 47J20.

• 出版日期2011
• 单位中山大学; 上海大学; 上海师范大学