An isomorphic characterization of the Schmidt class. (English) Zbl 0321.46017


46B99 Normed linear spaces and Banach spaces; Banach lattices
46A45 Sequence spaces (including Köthe sequence spaces)
46C99 Inner product spaces and their generalizations, Hilbert spaces
47B10 Linear operators belonging to operator ideals (nuclear, \(p\)-summing, in the Schatten-von Neumann classes, etc.)
47L05 Linear spaces of operators
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