Abstract
For a large class of Banach spaces, a general construction of subspaces without local unconditional structure is presented. As an application it is shown that every Banach space of finite cotype contains eitherl 2 or a subspace without unconditional basis, which admits a Schauder basis. Some other interesting applications and corollaries follow.
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The contribution of this author is a part of his Ph.D. Thesis written at the University of Alberta under the supervision of the second author.
An erratum to this article is available at http://dx.doi.org/10.1007/BF02780323.
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Komorowski, R.A., Tomczak-Jaegermann, N. Banach spaces without local unconditional structure. Israel J. Math. 89, 205–226 (1995). https://doi.org/10.1007/BF02808201
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DOI: https://doi.org/10.1007/BF02808201
