{ "id": "1606.05459", "version": "v1", "published": "2016-06-17T09:25:00.000Z", "updated": "2016-06-17T09:25:00.000Z", "title": "Plant complexes and homological stability for Hurwitz spaces", "authors": [ "J. Frederik Tietz" ], "comment": "34 pages, 21 figures, comments welcome!", "categories": [ "math.AT", "math.GT" ], "abstract": "We study Hurwitz spaces with regard to homological stabilization. By a Hurwitz space, we mean a moduli space of branched, not necessarily connected coverings of a disk with fixed structure group and number of branch points. We choose a sequence of subspaces of Hurwitz spaces which is suitable for our investigations. In the first part, we introduce and study plant complexes, a large new class of simplicial complexes, generalizing the arc complex on a surface with marked points. In the second part, we generalize a result by Ellenberg-Venkatesh-Westerland by showing that homological stabilization of our sequence of Hurwitz spaces depends only on properties of their zeroth homology groups.", "revisions": [ { "version": "v1", "updated": "2016-06-17T09:25:00.000Z" } ], "analyses": { "subjects": [ "57M12", "14H15", "55R80", "05E45", "20F36" ], "keywords": [ "homological stability", "homological stabilization", "study hurwitz spaces", "study plant complexes", "zeroth homology groups" ], "note": { "typesetting": "TeX", "pages": 34, "language": "en", "license": "arXiv", "status": "editable" } } }