Fixed Point Theory and Applications
Volume 2006 (2006), Article ID 69758, 12 pages
doi:10.1155/FPTA/2006/69758
Fixed point variational solutions for uniformly continuous pseudocontractions in Banach spaces
Department of Mathematics, Statistics, & Computer Science, University of Port Harcourt, Port Harcourt PMB 5323, Nigeria
Received 27 June 2005; Revised 21 November 2005; Accepted 28 November 2005
Copyright © 2006 Aniefiok Udomene. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Let E be a reflexive Banach space with a uniformly Gâteaux
differentiable norm, let K be a nonempty closed convex subset of
E, and let T:K→K be a uniformly continuous
pseudocontraction. If f:K→K is any contraction map
on K and if every nonempty closed convex and bounded subset of
K has the fixed point property for nonexpansive self-mappings,
then it is shown, under appropriate conditions on the sequences of
real numbers {αn}, {μn}, that the iteration process z1∈K, zn+1=μn(αnTzn+(1−αn)zn)+(1−μn)f(zn), n∈ℕ, strongly converges to the fixed point of T, which is the unique solution of some variational inequality,
provided that K is bounded.