TY - JOUR AU - Bombal Gordón, Fernando PY - 1992 DO - 10.1016/S0304-0208(08)70327-X SN - 0-444-89378-4 UR - https://hdl.handle.net/20.500.14352/57200 T2 - North-Holland Mathematics Studies AB - We characterize several classes of subsets in the Λ-sum (ΣEn)Λ of a sequence (En) of Banach spaces (where A is a Banach sequence ideal space), in terms of the corresponding classes in the spaces En. Several stability results are obtained. M2 - 293 PB - Elsevier KW - Distinguished subsets KW - Vector sequence spaces KW - Weakly unconditionally convergent series KW - Perfect Banach sequence space KW - Complemented copy of c0 TI - Distinguished subsets in vector sequence spaces TY - journal article VL - 170 ER -