Entropy numbers of r-nuclear operators in Banach spaces of type q
Thomas Kühn (1984)
Studia Mathematica
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Thomas Kühn (1984)
Studia Mathematica
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Albrecht Pietsch (1990)
Studia Mathematica
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Martin Defant, Marius Junge (1990)
Studia Mathematica
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Bernd Carl, Thomas Kühn (1985)
Revista Matemática Iberoamericana
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In the paper local entropy moduli of operators between Banach spaces are introduced. They constitue a generalization of entropy numbers and moduli, and localize these notions in an appropriate way. Many results regarding entropy numbers and moduli can be carried over to local entropy moduli. We investigate relations between local entropy moduli and s-numbers, spectral properties, eigenvalues, absolutely summing operators. As applications, local entropy moduli of identical and diagonal...
Hans Jarchow, Kamil John (1988)
Czechoslovak Mathematical Journal
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Carl, Bernd, Edmunds, David E. (2001)
Journal of Inequalities and Applications [electronic only]
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Carl, B., Pietsch, A.
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Walden Freedman (2002)
Colloquium Mathematicae
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A Banach space X has property (E) if every operator from X into c₀ extends to an operator from X** into c₀; X has property (L) if whenever K ⊆ X is limited in X**, then K is limited in X; X has property (G) if whenever K ⊆ X is Grothendieck in X**, then K is Grothendieck in X. In all of these, we consider X as canonically embedded in X**. We study these properties in connection with other geometric properties, such as the Phillips properties, the Gelfand-Phillips and weak Gelfand-Phillips...