{ "id": "1609.05326", "version": "v1", "published": "2016-09-17T12:40:24.000Z", "updated": "2016-09-17T12:40:24.000Z", "title": "Preduals and complementation of spaces of bounded linear operators", "authors": [ "Eusebio Gardella", "Hannes Thiel" ], "comment": "46 pages", "categories": [ "math.FA", "math.OA" ], "abstract": "For Banach spaces X and Y, we establish a natural bijection between preduals of Y and preduals of L(X,Y) that respect the right L(X)-module structure. If X is reflexive, it follows that there is a unique predual making L(X) into a dual Banach algebra. This removes the condition that X have the approximation property in a result of Daws. We further establish a natural bijection between projections that complement Y in its bidual and projections that complement L(X,Y) in its bidual as a right L(X)-module. It follows that Y is complemented in its bidual if and only if L(X,Y) is complemented in its bidual (either as a module or as a Banach space).", "revisions": [ { "version": "v1", "updated": "2016-09-17T12:40:24.000Z" } ], "analyses": { "subjects": [ "47L05", "47L10", "47L45", "46B10", "46B20" ], "keywords": [ "bounded linear operators", "natural bijection", "complementation", "banach space", "dual banach algebra" ], "note": { "typesetting": "TeX", "pages": 46, "language": "en", "license": "arXiv", "status": "editable" } } }