Maxis smoothing operators and some Orlicz classes

Composition Operators and Multiplication Operators on Orlicz Spaces

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some properties of fuzzy hilbert spaces and norm of operators

in this thesis, at first we investigate the bounded inverse theorem on fuzzy normed linear spaces and study the set of all compact operators on these spaces. then we introduce the notions of fuzzy boundedness and investigate a new norm operators and the relationship between continuity and boundedness. and, we show that the space of all fuzzy bounded operators is complete. finally, we define...

Some equivalence classes of operators on B(H)

Perturbation properties of some classes of operators

Riassunto: Sia X uno spazio di Banach complesso e L(X) l'algebra di di Banach di tutti gli operatori lineari limitati in X. Considerate le seguenti famiglie di operatori: D(X) = {T ∈ L(X) : T (X) is closed and N (T) ⊆ ∞ n=1 T n (X)}, S(X) = {T ∈ D(X) : T is relatively regular}. si determinanno i punti interni di D(X) e S(X), si dimostrano inoltre alcuni teoremi di perturbazione. Abstract: Let X...

Composition Operators in Orlicz Spaces

Composition operators C− between Orlicz spaces L.;6;1⁄4/ generated by measurable and nonsingular transformations − from  into itself are considered. We characterize boundedness and compactness of the composition operator between Orlicz spaces in terms of properties of the mapping − , the function ' and the measure space .;6;1⁄4/. These results generalize earlier results known for L p-spaces....