Open Access Research

Strong convergence theorems of nonlinear operator equations for countable family of multi-valued total quasi-ϕ-asymptotically nonexpansive mappings with applications

Shih-Sen Chang1*, Lin Wang1, Yong-Kun Tang1, Yun-He Zhao1 and Zao-Li Ma2

Author Affiliations

1 College of Statistics and Mathematics, Yunnan University of Finance and Economics, Kunming, Yunnan 650221, China

2 School of Information Engineering, the College of Arts and Sciences, Yunnan Normal University, Kunming, Yunnan 650222, China

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Fixed Point Theory and Applications 2012, 2012:69 doi:10.1186/1687-1812-2012-69

Published: 30 April 2012

Abstract

The purpose of this article is first to introduce the concept of total quasi-ϕ-asymptotically nonexpansive multi-valued mapping which contains many kinds of mappings as its special cases, and then by using the hybrid shrinking technique to propose an iterative algorithm for finding a common element of the set of solutions for a generalized mixed equilibrium problem, the set of solutions for variational inequality problems, and the set of common fixed points for a countable family of multi-valued total quasi-ϕ-asymptotically nonexpansive mappings in a real uniformly smooth and strictly convex Banach space with Kadec-Klee property. The results presented in the article not only generalize some recent results from single-valued mappings to multi-valued mappings, but also improve and extend the main results of Homaeipour and Razani.

2000 AMS Subject Classification: 47J06; 47J25.

Keywords:
multi-valued total quasi-ϕ-asymptotically nonexpansive mappings; quasi-ϕ-asymptotically nonexpansive multi-valued mappings; quasi-ϕ-nonexpansive multi-valued mappings; relatively nonexpansive multi-valued mappings; generalized projection