{ "id": "0902.2258", "version": "v3", "published": "2009-02-13T04:42:09.000Z", "updated": "2010-05-04T11:54:12.000Z", "title": "Locally precompact groups: (Local) realcompactness and connectedness", "authors": [ "W. W. Comfort", "G. Lukács" ], "comment": "v3 (published version)", "journal": "Journal of Lie Theory 20 (2010) 347-374", "categories": [ "math.GN", "math.GR" ], "abstract": "A theorem of A. Weil asserts that a topological group embeds as a (dense) subgroup of a locally compact group if and only if it contains a non-empty precompact open set; such groups are called locally precompact. Within the class of locally precompact groups, the authors classify those groups with the following topological properties: Dieudonn\\'e completeness; local realcompactness; realcompactness; hereditary realcompactness; connectedness; local connectedness; zero-dimensionality. They also prove that an abelian locally precompact group occurs as the quasi-component of a topological group if and only if it is precompactly generated, that is, it is generated algebraically by a precompact subset.", "revisions": [ { "version": "v3", "updated": "2010-05-04T11:54:12.000Z" } ], "analyses": { "subjects": [ "22A05", "54H11", "22B05", "22C05" ], "keywords": [ "connectedness", "abelian locally precompact group occurs", "non-empty precompact open set", "topological group", "hereditary realcompactness" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0902.2258C" } } }