Fixed Point Theory and Applications 
Volume 2008 (2008), Article ID 167535, 14 pages
doi:10.1155/2008/167535
Research Article

Convergence on Composite Iterative Schemes for Nonexpansive Mappings in Banach Spaces

Jong Soo Jung

Department of Mathematics, Dong-A University, Busan 604-714, South Korea

Received 13 January 2008; Revised 5 April 2008; Accepted 3 May 2008

Recommended by Mohammed Khamsi

Abstract

Let E be a reflexive Banach space with a uniformly Gâteaux differentiable norm. Suppose that every weakly compact convex subset of E has the fixed point property for nonexpansive mappings. Let C be a nonempty closed convex subset of E, f:CC a contractive mapping (or a weakly contractive mapping), and T:CC nonexpansive mapping with the fixed point set F(T). Let {xn} be generated by a new composite iterative scheme: yn=λnf(xn)+(1λn)Txn, xn+1=(1βn)yn+βnTyn, (n0). It is proved that {xn} converges strongly to a point in F(T), which is a solution of certain variational inequality provided that the sequence {λn}(0,1) satisfies limnλn=0 and n=1λn=, {βn}[0,a) for some 0<a<1 and the sequence {xn} is asymptotically regular.