Cobos Díaz, FernandoMilman, Mario2023-06-202023-06-2019900163-056310.1080/01630569008816358https://hdl.handle.net/20.500.14352/57340We describe the behaviour under interpolation of a limit class of approximation spaces. We characterize them as extrapolation spaces. Moreover, we study the boundedness of certain operators on these spaces. As an application, we derive several results on Macaev operator ideals.journal articlehttps//doi.org/10.1080/01630569008816358http://www.tandfonline.com/doi/abs/10.1080/01630569008816358metadata only access517.98Interpolation spacesQuasi-normed abelian groupExtrapolation spacesApproximation spacesAnálisis funcional y teoría de operadores