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Projections in the J-sums of Banach spaces

Abstract: We study some families of projections in the J-sums of Banach spaces J(?) and J^(?) introduced by Bellenot. As an application, we show that, under some conditions, J(?) and J^(?) are subprojective, i.e., every closed infinite-dimensional subspace of either of them contains a complemented infinite-dimensional subspace.

 Fuente: Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A, Matemáticas, 2024, 118(4), 162

 Publisher: Springer

 Publication date: 01/10/2024

 No. of pages: 13

 Publication type: Article

 DOI: 10.1007/s13398-024-01654-4

 ISSN: 1578-7303,1579-1505

 Spanish project: PID2019-103961GB-C22

 Publication Url: https://doi.org/10.1007/s13398-024-01654-4

Authorship

JAVIER PELLO GARCIA