On property in -spaces
Józef Burzyk, Andrzej Kamiński (1999)
Mathematica Slovaca
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Józef Burzyk, Andrzej Kamiński (1999)
Mathematica Slovaca
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Christopher E. Stuart (1996)
Collectanea Mathematica
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M. Ostrovskiĭ (1993)
Studia Mathematica
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The main result: the dual of separable Banach space X contains a total subspace which is not norming over any infinite-dimensional subspace of X if and only if X has a nonquasireflexive quotient space with a strictly singular quotient mapping.
Stephen Saxon, P. Narayanaswami (1989)
Studia Mathematica
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Fleming, Richard J. (1979)
Portugaliae mathematica
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Juan Carlos Díaz Alcaide (1993)
Publicacions Matemàtiques
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The main result in this paper is the following: Let E be a Fréchet space having a normable subspace X isomorphic to l, 1 ≤ p < ∞, or to c. Let F be a closed subspace of E. Then either F or E/F has a subspace isomorphic to X.
Kakol J. Poznan (1990)
Revista de la Real Academia de Ciencias Exactas Físicas y Naturales
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