%0 Journal Article %A Cobos, Fernando %A Resina, Ivam %T Representation Theorems for Some Operator Ideals %D 1989 %@ 0024-6107 %U https://hdl.handle.net/20.500.14352/57285 %X We establish representation theorems in terms of finite rank operators for some operator ideals defined by approximation numbers. We also study the stability under tensor product of these ideals. %~