{ "id": "math/0511726", "version": "v1", "published": "2005-11-30T02:57:41.000Z", "updated": "2005-11-30T02:57:41.000Z", "title": "Elliptic curves and birational representation of Weyl groups", "authors": [ "Eguchi Mitsuaki", "Tomoyuki Takenawa" ], "comment": "14 pages", "categories": [ "math.AG", "math.RT" ], "abstract": "Some Weyl group acts on a family of rational varieties obtained by successive blow-ups at $m$ ($m\\geq n+2$) points in the projective space $\\mpp^n(\\mc)$. In this paper we study the case where all the points of blow-ups lie on a certain elliptic curve in $\\mpp^n$. Investigating the action of Weyl group on the Picard groups on the elliptic curve and on rational varieties, we show that the action on the parameters can be written as a group of linear transformations on the $(m+1)$-st power of a torus.", "revisions": [ { "version": "v1", "updated": "2005-11-30T02:57:41.000Z" } ], "analyses": { "subjects": [ "14E07", "14H52", "14H70" ], "keywords": [ "elliptic curve", "birational representation", "rational varieties", "weyl group acts", "blow-ups lie" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005math.....11726M" } } }