On the weak-approximate fixed point property

被引:7
|
作者
Barroso, Cleon S. [1 ]
Lin, Pei-Kee [2 ]
机构
[1] Univ Fed Ceara, Dept Matemat, BR-60455760 Fortaleza, Ceara, Brazil
[2] Univ Memphis, Dept Math, Memphis, TN 38152 USA
关键词
Weakly null sequences; Rosenthal's l(1)-theorem; Fixed point property; Asymptotic approximation; Weak topology; THEOREMS; SPACES;
D O I
10.1016/j.jmaa.2009.10.007
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let X be a Banach space and C a bounded, closed, convex subset of X, C is said to have the weak-approximate fixed point property if for any norm-continuous mapping f : C -> C, there exists a sequence {x(n)} in C such that (x(n) - f (x(n)))(n) converges to 0 weakly. It is known that every infinite-dimensional Banach space with the Schur property does not have the weak-approximate fixed point property. In this article. we show that every Asplund space has the weak-approximate fixed point property. Applications to the asymptotic fixed point theory are given. (c) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:171 / 175
页数:5
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