{ "id": "1005.4156", "version": "v2", "published": "2010-05-22T23:36:01.000Z", "updated": "2010-06-15T19:04:17.000Z", "title": "Face numbers of cubical barycentric subdivisions", "authors": [ "Christina Savvidou" ], "comment": "8 pages, 1 figure", "categories": [ "math.CO" ], "abstract": "The cubical barycentric subdivision sd_c(K) of a cubical complex K is introduced as an analogue of the barycentric subdivision of a simplicial complex. Explicit formulas for the short and long cubical h-vector of sd_c(K) are given, in terms of those of K. It is deduced that symmetry and nonnegativity of these h-vectors, as well as real rootedness of the short cubical h-polynomial, are preserved under cubical barycentric subdivision. The asymptotic behavior of the short and long cubical h-vectors of successive cubical barycentric subdivisions of K is also determined.", "revisions": [ { "version": "v2", "updated": "2010-06-15T19:04:17.000Z" } ], "analyses": { "keywords": [ "face numbers", "long cubical h-vector", "simplicial complex", "successive cubical barycentric subdivisions", "explicit formulas" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1005.4156S" } } }