Besoy, Blanca F.Cobos Díaz, FernandoFernández-Cabrera Marín, Luz María2023-06-152023-06-1520201798-238310.5186/aasfm.2020.4525https://hdl.handle.net/20.500.14352/162.1We determine the associate space of the logarithmic interpolation space (X0, X1)1,q,A where X0 and X1 are Banach function spaces over a ?-finite measure space (?, µ). Particularizing the results for the case of the couple (L1, L?) over a non-atomic measure space, we recover results of Opic and Pick on associate spaces of generalized Lorentz-Zygmund spaces L(?,q;A). We also establish the corresponding results for sequence spaces.engAtribución-NoComercial 3.0 Españahttps://creativecommons.org/licenses/by-nc/3.0/es/journal articlehttps//doi.org/10.5186/aasfm.2020.4525https://www.acadsci.fi/mathematica/Vol45/vol45pp0493-0510.pdfopen access515.175.2517.982.22Banach function SpacesGeneralized Lorentz-Zygmund spacesDescription of K-spaces in terms of the J-functionalGeneralized Lorentz-Zygmund spacesEspacios de BanachAnálisis matemático1202 Análisis y Análisis Funcional