{ "id": "1204.2623", "version": "v1", "published": "2012-04-12T06:33:13.000Z", "updated": "2012-04-12T06:33:13.000Z", "title": "(E,F)-multipliers and applications", "authors": [ "Fedor Sukochev", "Anna Tomskova" ], "comment": "16 pages", "categories": [ "math.FA" ], "abstract": "For two given symmetric sequence spaces $E$ and $F$ we study the $(E,F)$-multiplier space, that is the space all of matrices $M$ for which the Schur product $M\\ast A$ maps $E$ into $F$ boundedly whenever $A$ does. We obtain several results asserting continuous embedding of $(E,F)$-multiplier space into the classical $(p,q)$-multiplier space (that is when $E=l_p$, $F=l_q$). Furthermore, we present many examples of symmetric sequence spaces $E$ and $F$ whose projective and injective tensor products are not isomorphic to any subspace of a Banach space with an unconditional basis, extending classical results of S. Kwapie\\'{n} and A. Pe{\\l}czy\\'{n}ski and of G. Bennett for the case when $E=l_p$, $F=l_q$.", "revisions": [ { "version": "v1", "updated": "2012-04-12T06:33:13.000Z" } ], "analyses": { "keywords": [ "symmetric sequence spaces", "multiplier space", "applications", "unconditional basis", "injective tensor products" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1204.2623S" } } }