On Tensor Products of Quasi-Banach Spaces
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Date
2010-10-01
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Report
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Abstract
Due to applications in approximation theory we are interested in tensor products of quasi-Banach spaces. Though a general abstract theory seems not possible beyond basic topological issues because the dual spaces are possibly trivial, we aim at extending some basic notions like crossnorms, reasonable and uniform norms. In the present paper this is done for quasi- Banach spaces with separating duals, and this condition turns out to be the (in a certain sense) minimal requirement. Moreover, we study extensions of the classical injective and p-nuclear tensor norms to quasi Banach spaces. In particular, we give a sufficient condition for the $p$nuclear quasi-norms to be crossnorms, which particularly applies to the case of weighted $l_p$-sequence spaces.
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published
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2010-31
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Seminar for Applied Mathematics, ETH Zurich
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Subject
algebraic tensor product; tensor product of distributions; quasi-norm; p-norm; injective tensor norm; p-nuclear tensor norm
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02501 - Seminar für Angewandte Mathematik / Seminar for Applied Mathematics
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247277 - Automated Urban Parking and Driving (EC)