{ "id": "math/0006026", "version": "v2", "published": "2000-06-05T04:50:57.000Z", "updated": "2000-09-18T09:06:16.000Z", "title": "Deformation of Okamoto-Painlevé Pairs and Painlevé equations", "authors": [ "Masa-Hiko Saito", "Taro Takebe", "Hitomi Terajima" ], "comment": "38 pages, 4 figures, minor corrections, typos", "journal": "J. Algebraic Geom. 11 (2002), 311-362.", "categories": [ "math.AG" ], "abstract": "In this paper, we introduce the notion of generalized rational Okamoto-Painlev\\'e pair (S, Y) by generalizing the notion of the spaces of initial conditions of Painlev\\'e equations. After classifying those pairs, we will establish an algebro-geometric approach to derive the Painlev\\'e differential equations from the deformation of Okamoto-Painlev\\'e pairs by using the local cohomology groups. Moreover the reason why the Painlev\\'e equations can be written in Hamiltonian systems is clarified by means of the holomorphic symplectic structure on S - Y. Hamiltonian structures for Okamoto-Painlev\\'e pairs of type $\\tilde{E}_7 (= P_{II})$ and $\\tilde{D}_8 (= P_{III}^{\\tilde{D}_8})$ are calculated explicitly as examples of our theory.", "revisions": [ { "version": "v2", "updated": "2000-09-18T09:06:16.000Z" } ], "analyses": { "subjects": [ "14D15", "34M55", "32G10", "14J26" ], "keywords": [ "deformation", "painleve equations", "generalized rational okamoto-painleve pair", "painleve differential equations", "holomorphic symplectic structure" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 38, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2000math......6026S" } } }