Best approximations;
Invariant sets;
Best proximity pairs;
Nonexpansive mappings;
Condensing mappings;
FIXED-POINT THEOREMS;
MULTIVALUED MAPPINGS;
D O I:
10.1016/j.na.2008.03.045
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
In hyperconvex metric spaces we consider best approximation, invariant approximation and best proximity pair problems for multivalued mappings that are condensing or nonexpansive. (C) 2008 Elsevier Ltd. All rights reserved.