%0 Journal Article %A Cobos Díaz, Fernando %A Fernández-Martínez, Pedro %A Martínez, Antón %T Measure of non-compactness and interpolation methods associated to polygons %D 1999 %@ 0017-0895 %U https://hdl.handle.net/20.500.14352/57249 %X We establish an estimate for the measure of non-compactness of aninterpolated operator acting from a J-space into a K-space. Our result refers togeneral Banach N-tuples. We also derive estimates for entropy numbers if some ofthe N-tuples reduce to a single Banach space. %~