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Does this theorem correct?? Theorem: A bounded linear operator T: X to Y is weakly compact if and only if it does not preserve a copy of l_1 That is, T is not weakly compact iff there exists a...
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Which is the best reference to study basics notions of "block operator matrices"
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Let X be a Banach space which has no infinite reflexive subspaces. Does this assumption implies that the space X itself is not reflexive?
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