On inclusion relations between Lorentz sequence spaces and inequalities of Lewis type.
l operators and (Φ,φ)-spaces.
A new class of linear and bounded operators is introduced. This class is more general than the classes of operators from [4], [5] and [8]. Using this class l we also introduce a class of locally convex spaces which is more general than the classes of the nuclear spaces [2], [3] and φ-nuclear spaces [6]. For this class of operators similar properties are established to those of the well known classes l, l, l and also the stability of the tensor product is proved. The stability of the tensor product...
On a class of linear operators.
(Φ, φ)-absolutely summing operators.
Operators of type
L'Autore generalizza una classe di operatori e dà una risposta negativa ad un problema posto da un altro autore.
On A-p-summing operators
Si generalizzano alcune proprietà degli operatori A-p sommabili e si risolve una questione presentata da altri A.
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