{ "id": "1107.4878", "version": "v2", "published": "2011-07-25T09:54:43.000Z", "updated": "2012-12-17T12:27:46.000Z", "title": "Minimal Model Program with scaling and adjunction theory", "authors": [ "Marco Andreatta" ], "comment": "12 pages. Proposition 3.6 of the previous version was incomplete. Some proofs have been shortened. The paper will be published on International Journal of Mathematics", "categories": [ "math.AG" ], "abstract": "Let (X,L) be a quasi polarized pairs, i.e. X is a normal complex projective variety and L is a nef and big line bundle on it. We study, up to birational equivalence, the positivity (nefness) of the adjoint bundles K_X + rL for high rational number r. For this we run a Minimal Model Program with scaling relative to the divisor K_X +rL. We give some applications, namely the classification up to birational equivalence of quasi polarized pairs with sectional genus 0,1 and of embedded projective varieties X < P^N with degree smaller than 2codim(X) +2.", "revisions": [ { "version": "v2", "updated": "2012-12-17T12:27:46.000Z" } ], "analyses": { "subjects": [ "14E30", "14J40", "14N30", "14N25" ], "keywords": [ "minimal model program", "adjunction theory", "quasi polarized pairs", "birational equivalence", "normal complex projective variety" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1107.4878A" } } }