Hahn-Banach extension operators and spaces of operators |
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Authors: | Å svald Lima Eve Oja |
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Institution: | Department of Mathematics, Agder College, Gimlemoen 257, Serviceboks 422, 4604 Kristiansand, Norway ; Faculty of Mathematics, Tartu University, Vanemuise 46, EE-51014 Tartu, Estonia |
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Abstract: | Let be Banach spaces and let be closed operator ideals. Let be a Banach space having the Radon-Nikodým property. The main results are as follows. If is a Hahn-Banach extension operator, then there exists a set of Hahn-Banach extension operators , , such that , where . If is an ideal in for all equivalently renormed versions of , then there exist Hahn-Banach extension operators and such that . |
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Keywords: | Hahn-Banach extension operators spaces of operators operator ideals Radon-Nikod\'{y}m property |
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