{ "id": "1309.4974", "version": "v1", "published": "2013-09-19T13:42:48.000Z", "updated": "2013-09-19T13:42:48.000Z", "title": "Multiplication operators on $L_p$ spaces and homological triviality of respective category of modules", "authors": [ "Norbert Nemesh" ], "comment": "20 pages", "categories": [ "math.FA" ], "abstract": "We give complete characterisation of topologically injective (bounded below), topologically surjective (open mapping), isometric and coisometric (quotient mapping) multiplication operators between $L_p$ spaces defined on different $\\sigma$-finite measure spaces. We prove that all such operators invertible from the left or from the right. As the consequence we prove that all objects of the category of $L_p$ spaces considered as left Banach modules over algebra of bounded measurable functions are metrically, extremelly and relatively projective, injective and flat.", "revisions": [ { "version": "v1", "updated": "2013-09-19T13:42:48.000Z" } ], "analyses": { "subjects": [ "46E30", "46M10" ], "keywords": [ "multiplication operators", "homological triviality", "respective category", "finite measure spaces", "left banach modules" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1309.4974N" } } }