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Asymptotic domination of operators on Köthe function spaces and convergence of sequences

✍ Scribed by E. A. Sánchez Pérez


Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
207 KB
Volume
279
Category
Article
ISSN
0025-584X

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✦ Synopsis


Abstract

We study the asymptotic behavior of Maurey–Rosenthal type dominations for operators on Köthe function spaces which satisfy norm inequalities that define weak q ‐concavity properties. In particular, we define and study two new classes of operators that we call α ‐almost q ‐concave and q~α~ ‐concave operators (1 ≤ q < ∞, 0 ≤ α < 1). We also provide a factorization theorem through real interpolation spaces for q~α~ ‐concave operators. We also discuss some direct consequences of these results regarding the strong convergence of sequences on Köthe function spaces. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)


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