{ "id": "1309.3862", "version": "v1", "published": "2013-09-16T08:54:10.000Z", "updated": "2013-09-16T08:54:10.000Z", "title": "Weak-star point of continuity property and Schauder bases", "authors": [ "Ginés López Pérez", "José A. Soler Arias" ], "categories": [ "math.FA" ], "abstract": "We characterize the weak-star point of continuity property for subspaces of dual spaces with separable predual and we deduce that the weak-star point of continuity property is determined by subspaces with a Schauder basis in the natural setting of dual spaces of separable Banach spaces. As a consequence of the above characterization we get that a dual space satisfies the Radon-Nikodym property if, and only if, every seminormalized topologically weak-star null tree has a boundedly complete branch, which improves some results in \\cite{DF} obtained for the separable case. Also, as a consequence of the above characterization, the following result obtained in \\cite{R1} is deduced: {\\it every seminormalized basic sequence in a Banach space with the point of continuity property has a boundedly complete subsequence", "revisions": [ { "version": "v1", "updated": "2013-09-16T08:54:10.000Z" } ], "analyses": { "keywords": [ "continuity property", "weak-star point", "schauder bases", "complete subsequence", "banach space" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1309.3862L" } } }