A superreflexive Banach space with a finite dimensional decomposition so that no large subspace has a basis
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Abstract
The main result of the present paper is the construction of a Banach space with finite dimensional decomposition in which no large subspace has a basis. This answers a question raised by P. Casazza. The paper also contains various results on subspaces of direct sums of spaces and an investigation of spaces closely related to spaces constructed by the first named author.
Keywords
Banach Space Natural Projection Separable Banach Space Space Decomposition Holomorphic Semigroup
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