{ "id": "1108.4007", "version": "v1", "published": "2011-08-19T17:02:54.000Z", "updated": "2011-08-19T17:02:54.000Z", "title": "Minimal Free Resolutions of 0-Dimensional Schemes in P1 \\times P1", "authors": [ "Paola Bonacini", "Lucia Marino" ], "categories": [ "math.AG" ], "abstract": "Let X be a zero-dimensional scheme in P1 \\times P1. Then X has a minimal free resolution of length 2 if and only if X is ACM. In this paper we determine a class of reduced schemes whose resolutions, similarly to the ACM case, can be obtained by their Hilbert functions and depends only on their distributions of points in a grid of lines. Moreover, a minimal set of generators of the ideal of these schemes is given by curves split into the union of lines.", "revisions": [ { "version": "v1", "updated": "2011-08-19T17:02:54.000Z" } ], "analyses": { "subjects": [ "13D02", "13D40", "13H10" ], "keywords": [ "minimal free resolution", "acm case", "zero-dimensional scheme", "hilbert functions", "minimal set" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1108.4007B" } } }