Banach space;
Complemented subspace;
Tensor product;
Space of operators;
OPERATORS;
SUBSPACES;
LATTICES;
D O I:
10.1016/j.jmaa.2014.11.008
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
A Banach space X is called subprojective if any of its infinite dimensional subspaces contains a further infinite dimensional subspace complemented in X. This paper is devoted to systematic study of subprojectivity. We examine the stability of subprojectivity of Banach spaces under various operations, such as direct or twisted sums, tensor products, and forming spaces of operators. Along the way, we obtain new classes of subprojective spaces. (C) 2014 Elsevier Inc. All rights reserved.
机构:
Univ Sao Paulo, Inst Mat & Estat, Dept Matemat, BR-05508090 Sao Paulo, Brazil
Univ Paris 06, Inst Math, Equipe Anal Fonct, F-75252 Paris 05, FranceUniv Extremadura, Dept Matemat, Badajoz 06011, Spain