Approximate fixed point sequences and convergence theorems for Lipschitz pseudocontractive maps

被引:67
作者
Chidume, CE [1 ]
Zegeye, H [1 ]
机构
[1] Abdus Salam Int Ctr Theoret Phys, Trieste, Italy
关键词
normalized duality maps; uniformly Gateaux differentiable norm; pseudocontractive maps;
D O I
10.1090/S0002-9939-03-07101-6
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let K be a nonempty closed convex subset of a real Banach space E and T be a Lipschitz pseudocontractive self-map of K with F(T):={x is an element of K:Tx=x} not equal empty set. An iterative sequence {x(n)} is constructed for which parallel tox(n)-Tx(n)parallel to-->0 as n-->infinity. If, in addition, K is assumed to be bounded, this conclusion still holds without the requirement that F(T)not equalempty set. Moreover, if, in addition, E has a uniformly Gateaux differentiable norm and is such that every closed bounded convex subset of K has the fixed point property for nonexpansive self-mappings, then the sequence {x(n)} converges strongly to a fixed point of T. Our iteration method is of independent interest.
引用
收藏
页码:831 / 840
页数:10
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