Cobos Díaz, FernandoGarcía Davía, María Antonia2023-06-202023-06-2019940024-609310.1112/blms/26.5.465https://hdl.handle.net/20.500.14352/57273We show that the behaviour under interpolation of 5x-class operators is not as good as it was supposed to be. An interpolation formula for Hilbert-Schmidt operators is also established.engjournal articlehttps//doi.org/10.1112/blms/26.5.465http://blms.oxfordjournals.org/content/26/5/465.full.pdf+htmlrestricted access519.6Aronszajn-Gagliardo FunctorsCompact-OperatorsRealAnálisis numérico1206 Análisis Numérico