On the existence of fundamental and total founded biorthogonal systems in Banach spaces
W. Davis, W. Johnson (1973)
Studia Mathematica
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W. Davis, W. Johnson (1973)
Studia Mathematica
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S. Rolewicz (1961)
Studia Mathematica
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Kamil John, Václav Zizler (1976)
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Bečvářová, Martina, Bečvář, Jindřich, Dlab, Vlastimil, Slavík, Antonín
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Z. Semadeni (1963)
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David Dean, Ivan Singer, Leonard Stembach (1971)
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E. Martín Peinador, E. Induráin, A. Plans Sanz de Bremond, A. A. Rodes Usan (1988)
Revista Matemática de la Universidad Complutense de Madrid
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The main result of this paper is the following: A separable Banach space X is reflexive if and only if the infimum of the Gelfand numbers of any bounded linear operator defined on X can be computed by means of just one sequence on nested, closed, finite codimensional subspaces with null intersection.
Manuel Valdivia (1997)
Revista Matemática de la Universidad Complutense de Madrid
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