{ "id": "0903.3514", "version": "v1", "published": "2009-03-20T13:05:39.000Z", "updated": "2009-03-20T13:05:39.000Z", "title": "Selections, Paracompactness and Compactness", "authors": [ "Mitrofan M. Choban", "Ekaterina P. Mihaylova", "Stoyan I. Nedev" ], "comment": "23 pages", "categories": [ "math.GN" ], "abstract": "In the present paper, the Lindelof number and the degree of compactness of spaces and of the cozero-dimensional kernel of paracompact spaces are characterized in terms of selections of lower semi-continuous closed-valued mappings into complete metrizable (or discrete) spaces.", "revisions": [ { "version": "v1", "updated": "2009-03-20T13:05:39.000Z" } ], "analyses": { "subjects": [ "54C60", "54C65", "54D20" ], "keywords": [ "selections", "paracompactness", "lindelof number", "cozero-dimensional kernel", "paracompact spaces" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0903.3514C" } } }