RT Journal Article T1 Quasicomplemented Subspaces of Banach Spaces and Separable Quotients A1 Jiménez Sevilla, María Del Mar A1 Lajara, Sebastián AB We present a result which generalizes the theorems of Gurariy-Kadets and Lindenstrauss-Rosenthal on quasicomplemented subspaces of Banach spaces. We also provide a solution in wide classes of Banach spaces of a problem posed by Ivan Singer concerning the existence of a w*-basic sequence in the dual of a Banach space which is biorthogonal toa given basic sequence (or more generally, a given minimal sequence) in that space, and other related problems. PB Springer SN 1422-6383 SN 1420-9012 YR 2023 FD 2023 LK https://hdl.handle.net/20.500.14352/104469 UL https://hdl.handle.net/20.500.14352/104469 LA eng NO 2023 Acuerdos transformativos CRUE NO Ministerio de Ciencia e Innovación DS Docta Complutense RD 18 dic 2025