{ "id": "1010.4126", "version": "v1", "published": "2010-10-20T08:40:22.000Z", "updated": "2010-10-20T08:40:22.000Z", "title": "The asymptotic Weil-Petersson form and intersection theory on M_{g,n}", "authors": [ "Norman Do" ], "comment": "22 pages", "categories": [ "math.GT", "math.AG" ], "abstract": "Moduli spaces of hyperbolic surfaces with geodesic boundary components of fixed lengths may be endowed with a symplectic structure via the Weil-Petersson form. We show that, as the boundary lengths are sent to infinity, the Weil-Petersson form converges to a piecewise linear form first defined by Kontsevich. The proof rests on the observation that a hyperbolic surface with large boundary lengths resembles a graph after appropriately scaling the hyperbolic metric. We also include some applications to intersection theory on moduli spaces of curves.", "revisions": [ { "version": "v1", "updated": "2010-10-20T08:40:22.000Z" } ], "analyses": { "subjects": [ "32G15", "53D30", "14H10" ], "keywords": [ "asymptotic weil-petersson form", "intersection theory", "linear form first", "hyperbolic surface", "large boundary lengths resembles" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1010.4126D" } } }