{ "id": "math/0404322", "version": "v1", "published": "2004-04-19T00:17:22.000Z", "updated": "2004-04-19T00:17:22.000Z", "title": "Cardinal sequences and Cohen real extensions", "authors": [ "István Juhász", "Saharon Shelah", "Lajos Soukup", "Zoltán Szentmiklóssy" ], "categories": [ "math.LO", "math.GN" ], "abstract": "We show that if we add any number of Cohen reals to the ground model then, in the generic extension, a locally compact scattered space has at most (2^{aleph_0})^V many levels of size omega. We also give a complete ZFC characterization of the cardinal sequences of regular scattered spaces. Although the classes of the regular and of the 0-dimensional scattered spaces are different, we prove that they have the same cardinal sequences.", "revisions": [ { "version": "v1", "updated": "2004-04-19T00:17:22.000Z" } ], "analyses": { "keywords": [ "cardinal sequences", "cohen real extensions", "complete zfc characterization", "locally compact scattered space", "generic extension" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2004math......4322J" } } }