Cobos Díaz, FernandoFernández Besoy, Blanca2023-06-162023-06-1620200232-2064https://hdl.handle.net/20.500.14352/6070We 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.spajournal articlehttp://www.euro-math-soc.eu/open access51Espacio de interpolación logarítmicaFunciones característicasLogarithmic interpolation spacesJ-functionalK- functionalCharacteristic functionMatemáticas (Matemáticas)Análisis matemático12 Matemáticas1202 Análisis y Análisis Funcional