Cobos Díaz, FernandoFernández-Cabrera Marín, Luz MaríaMartínez, AntónPustylnik, Evgeniy2023-06-202023-06-2020020308-210510.1017/S0308210500001645https://hdl.handle.net/20.500.14352/57223We show that certain interpolation results for compact operators established by Cobos and co-workers cannot be extended to general closed operator ideals. We shall also characterize compactness of an embedding in terms of functions related to the classical K- and J -functionals of interpolation theory.engjournal articlehttps//doi.org/10.1017/S0308210500001645http://journals.cambridge.org/download.php?file=%2FPRM%2FPRM132_02%2FS0308210500001645a.pdf&code=4cbb92restricted access517.98Real InterpolationCompact OperatorsOperator IdealMathematicsAppliedAnálisis funcional y teoría de operadores