{ "id": "1112.5041", "version": "v3", "published": "2011-12-21T14:57:57.000Z", "updated": "2013-03-26T10:57:47.000Z", "title": "Minimality of toric arrangements", "authors": [ "Giacomo d'Antonio", "Emanuele Delucchi" ], "comment": "Exposition improved, details added, typos corrected; 46 pages, 5 figures. To appear in Journal of the European Mathematical Society", "categories": [ "math.CO", "math.AT" ], "abstract": "We prove that the complement of a toric arrangement has the homotopy type of a minimal CW complex. As a corollary we obtain that the integer cohomology of these spaces is torsion free. We use Discrete Morse Theory, providing a sequence of cellular collapses that leads to a minimal complex.", "revisions": [ { "version": "v3", "updated": "2013-03-26T10:57:47.000Z" } ], "analyses": { "subjects": [ "52C35", "32S22", "55U10", "18A30" ], "keywords": [ "toric arrangement", "minimality", "discrete morse theory", "minimal cw complex", "homotopy type" ], "note": { "typesetting": "TeX", "pages": 46, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1112.5041D" } } }