On Banach spaces X for which
Ed Dubinsky, A. Pełczyński, H. Rosenthal (1972)
Studia Mathematica
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Ed Dubinsky, A. Pełczyński, H. Rosenthal (1972)
Studia Mathematica
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Chen Dongyang (2004)
Collectanea Mathematica
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Let X be a real Banach space that does not contain a copy of l. Then X* contains asymptotically isometric copies of l if and only if X has a quotient which is asymptotically isometric to c.
C. Piñeiro (1994)
Collectanea Mathematica
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C. Leránoz (1992)
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We prove that if 0 < p < 1 then a normalized unconditional basis of a complemented subspace of must be equivalent to a permutation of a subset of the canonical unit vector basis of . In particular, has unique unconditional basis up to permutation. Bourgain, Casazza, Lindenstrauss, and Tzafriri have previously proved the same result for .
W. B. Johnson, E. Odell (1974)
Compositio Mathematica
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Chen Shutao, Bor-Luh Lin (1997)
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Jun, Kunás K. (1971)
Portugaliae mathematica
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V. Meshlov (1978)
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Nicole Tomczak-Jaegermann (1980)
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Jari Taskinen (1988)
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