{ "id": "1009.3622", "version": "v2", "published": "2010-09-19T09:33:08.000Z", "updated": "2010-10-27T20:16:48.000Z", "title": "The homotopy type of toric arrangements", "authors": [ "Luca Moci", "Simona Settepanella" ], "comment": "To appear on J. of Pure and Appl. Algebra. 16 pages, 3 pictures", "categories": [ "math.AT", "math.GT", "math.RT" ], "abstract": "A toric arrangement is a finite set of hypersurfaces in a complex torus, every hypersurface being the kernel of a character. In the present paper we build a CW-complex homotopy equivalent to the arrangement complement, with a combinatorial description similar to that of the well-known Salvetti complex. If the toric arrangement is defined by a Weyl group we also provide an algebraic description, very handy for cohomology computations. In the last part we give a description in terms of tableaux for a toric arrangement appearing in robotics.", "revisions": [ { "version": "v2", "updated": "2010-10-27T20:16:48.000Z" } ], "analyses": { "subjects": [ "52C35", "20F55", "05E45", "55P19" ], "keywords": [ "toric arrangement", "homotopy type", "cw-complex homotopy equivalent", "combinatorial description similar", "well-known salvetti complex" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1009.3622M" } } }