RT Journal Article T1 The equivalence theorem for logarithmic interpolation spaces in the quasi-Banach case A1 Cobos Díaz, Fernando A1 Fernández Besoy, Blanca AB We study the description by means of the J-functional of logarithmic interpolation spaces (A0, A1) 1, q, A in the category of the p-normed quasi-Banach couples (0 < p ≤ 1). When (A0, A1) is a Banach couple, it is known that the description changes depending on the relationship between q and A. In our more general setting, the parameter p also has an important role as the results show. PB European Mathematical Society SN 0232-2064 YR 2020 FD 2020 LK https://hdl.handle.net/20.500.14352/6070 UL https://hdl.handle.net/20.500.14352/6070 LA spa NO Ministerio de Economía, Comercio y Empresa (España)/Fondo Europeo de Desarrollo Regional NO Ministerio de Educación, Formación Profesional y Deportes (España) DS Docta Complutense RD 8 jun 2025