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Factorization of compact operators and applications to the approximation problem. (English) Zbl 0257.47017

##### MSC:
 47B06 Riesz operators; eigenvalue distributions; approximation numbers, $$s$$-numbers, Kolmogorov numbers, entropy numbers, etc. of operators 46E99 Linear function spaces and their duals 47A65 Structure theory of linear operators 46B99 Normed linear spaces and Banach spaces; Banach lattices
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