{ "id": "0801.1745", "version": "v1", "published": "2008-01-11T10:22:26.000Z", "updated": "2008-01-11T10:22:26.000Z", "title": "On the H^1-L^1 boundedness of operators", "authors": [ "S. Meda", "P. Sjogren", "M. Vallarino" ], "comment": "This paper will appear in Proceedings of the American Mathematical Society", "categories": [ "math.CA" ], "abstract": "We prove that if q is in (1,\\infty), Y is a Banach space and T is a linear operator defined on the space of finite linear combinations of (1,q)-atoms in R^n which is uniformly bounded on (1,q)-atoms, then T admits a unique continuous extension to a bounded linear operator from H^1(R^n) to Y. We show that the same is true if we replace (1,q)-atoms with continuous (1,\\infty)-atoms. This is known to be false for (1,\\infty)-atoms.", "revisions": [ { "version": "v1", "updated": "2008-01-11T10:22:26.000Z" } ], "analyses": { "subjects": [ "42B30", "46A22" ], "keywords": [ "boundedness", "finite linear combinations", "banach space", "bounded linear operator", "unique continuous extension" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0801.1745M" } } }