{ "id": "1007.4644", "version": "v2", "published": "2010-07-27T09:14:10.000Z", "updated": "2010-09-01T08:54:50.000Z", "title": "Irreducibility of A-hypergeometric systems", "authors": [ "F. Beukers" ], "categories": [ "math.AG" ], "abstract": "We give an elementary proof of the Gel'fand-Kapranov-Zelevinsky theorem that non-resonant A-hypergeometric systems are irreducible. We also provide a proof of a converse statement In this second version we have removed the condition of saturatedness in Theorems 1.2 and 1.3. In Theorem 1.3 it is replaced by the condition of Cohen-Macaulayness of the toric ideal.", "revisions": [ { "version": "v2", "updated": "2010-09-01T08:54:50.000Z" } ], "analyses": { "keywords": [ "irreducibility", "non-resonant a-hypergeometric systems", "gelfand-kapranov-zelevinsky theorem", "elementary proof", "converse statement" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1007.4644B" } } }