A Problem on Spreading Models
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E. Odell; Th. Schlumprecht
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Article
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1998
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Elsevier Science
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English
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It is proved that if a Banach space X has a basis (e n ) satisfying every spreading model of a normalized block basis of (e n ) is 1-equivalent to the unit vector basis of l 1 (respectively, c 0 ) then X contains l 1 (respectively, c 0 ). Furthermore, Tsirelson's space T is shown to have the propert