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Projections in the J-sums of Banach spaces
被引:1
作者:
Gonzalez, Manuel
[1
]
Pello, Javier
[2
]
机构:
[1] Univ Cantabria, Fac Ciencias, Santander 39071, Spain
[2] Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Mostoles 28933, Spain
来源:
关键词:
Projections;
Complemented Banach space;
J-sum of Banach spaces;
PERTURBATION CLASSES;
OPERATORS;
D O I:
10.1007/s13398-024-01654-4
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
We study some families of projections in the J-sums of Banach spaces J(Phi) and J<^>(Phi) introduced by Bellenot. As an application, we show that, under some conditions, J(Phi) and J<^>(Phi) are subprojective, i.e., every closed infinite-dimensional subspace of either of them contains a complemented infinite-dimensional subspace.
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页数:13
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