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On inessential and improjective operators.

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Aiena P., González M.

Studia Mathematica

1998

tom 131

nr 3

271-287

We give several characterizations of the improjective operators, introduced by Tarafdar, and we characterize the inessential operators among the improjective operators. It is an interesting problem whether both classes of operators coincide in general. A positive answer would provide, for example, an intrinsic characterization of the inessential operators. We give several equivalent formulations of this problem and we show that the inessential operators acting between certain pairs of Banach spaces coincide with the improjective operators.

Ograniczanie wyników

1 Studia Mathematica

1 Aiena P.

1 González M.

1 1998

Wyniki wyszukiwania

On inessential and improjective operators.