{ "id": "math/0412547", "version": "v2", "published": "2004-12-31T02:04:34.000Z", "updated": "2006-02-25T05:06:49.000Z", "title": "How many miles to beta-X? -- d miles, or just one foot", "authors": [ "Masaru Kada", "Kazuo Tomoyasu", "Yasuo Yoshinobu" ], "comment": "V2: minor linguistic corrections", "categories": [ "math.GN" ], "abstract": "It is known that the Stone-Cech compactification of a metrizable space X is approximated by the collection of Smirnov compactifications of X for all compatible metrics on X. If we confine ourselves to locally compact separable metrizable spaces, the corresponding statement holds for Higson compactifications. We investigate the smallest cardinality of a set D of compatible metrics on X such that the Stone-Cech compactification of X is approximated by Smirnov or Higson compactifications for all metrics in D. We prove that it is either the dominating number or 1 for a locally compact separable metrizable space.", "revisions": [ { "version": "v2", "updated": "2006-02-25T05:06:49.000Z" } ], "analyses": { "subjects": [ "54D35", "03E17" ], "keywords": [ "locally compact separable metrizable space", "higson compactifications", "stone-cech compactification", "compatible metrics", "corresponding statement holds" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2004math.....12547K" } } }