{ "id": "1507.04026", "version": "v1", "published": "2015-07-14T21:00:42.000Z", "updated": "2015-07-14T21:00:42.000Z", "title": "Generalized symmetric systems and thin-very tall compact scattered spaces", "authors": [ "Miguel Angel Mota", "William Weiss" ], "comment": "14 pages", "categories": [ "math.LO" ], "abstract": "We solve a well--known problem in the theory of compact scattered spaces and superatomic boolean algebras by showing that, under GCH and for each regular cardinal $\\kappa \\geq \\omega$, there is a poset $\\mathcal P_\\kappa$ preserving all cardinals and forcing the existence of a $\\kappa$--thin very tall locally compact scattered space. For $\\kappa > \\omega$, we conceive the poset $\\mathcal P_\\kappa$ as a higher analogue of the poset $\\mathcal P_\\omega$ originally introduced by Asper\\'{o} and Bagaria in the context of an (unpublished) alternative consistency proof.", "revisions": [ { "version": "v1", "updated": "2015-07-14T21:00:42.000Z" } ], "analyses": { "subjects": [ "03E35", "03G05", "54A25", "54A35", "54G12" ], "keywords": [ "thin-very tall compact scattered spaces", "generalized symmetric systems", "superatomic boolean algebras", "tall locally compact scattered space", "well-known problem" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable" } } }