{ "id": "math/0006027", "version": "v1", "published": "2000-06-05T05:09:48.000Z", "updated": "2000-06-05T05:09:48.000Z", "title": "Local cohomology of generalized Okamoto-Painlevé pairs and Painlevé equations", "authors": [ "Hitomi Terajima" ], "comment": "22 pages", "categories": [ "math.AG" ], "abstract": "In the theory of deformation of Okamoto-Painlev\\'e pair (S,Y), a local cohomology group $H^1_D(\\Theta_S(-\\log D))$ plays an important role. In this paper, we estimate the local cohomology group of pair (S,Y) for several types, and obtain the following results. For a pair (S,Y) corresponding to the space of initial conditions of the Painlev\\'e equations, we show that the local cohomology group $H^1_D(\\Theta_S(-\\log D))$ is at least 1 dimensional. This fact is the key to understand Painlev\\'e equation related to (S,Y). Moreover we show that, for the pairs (S,Y) of type $\\tilde{A_8}$, the local cohomology group $H^1_D(\\Theta_S(-\\log D))$ vanish. Therefore in this case, there is no differential equation on S-Y in the sense of the theory.", "revisions": [ { "version": "v1", "updated": "2000-06-05T05:09:48.000Z" } ], "analyses": { "subjects": [ "14D15", "14J26", "32G10", "34M55" ], "keywords": [ "local cohomology group", "initial conditions", "okamoto-painleve pair", "understand painleve equation", "important role" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2000math......6027T" } } }