{ "id": "1112.0425", "version": "v4", "published": "2011-12-02T10:58:33.000Z", "updated": "2012-11-09T11:12:22.000Z", "title": "Semiregularity and obstructions of complete intersections", "authors": [ "Donatella Iacono", "Marco Manetti" ], "comment": "V2 typos corrected, 30 pages. V3 typos and references updated", "journal": "Advances in Mathematics 235 (2013) pag. 92-125", "doi": "10.1016/j.aim.2012.11.011", "categories": [ "math.AG", "math.QA" ], "abstract": "We prove that, on a smooth projective variety over an algebraically closed field of characteristic 0, the semiregularity map annihilates every obstruction to embedded deformations of a local complete intersection subvariety with extendable normal bundle. The proof is based on the theory of L-infinity algebras and Tamarkin-Tsigan calculus on the de Rham complex of DG-schemes.", "revisions": [ { "version": "v4", "updated": "2012-11-09T11:12:22.000Z" } ], "analyses": { "keywords": [ "obstruction", "local complete intersection subvariety", "semiregularity map annihilates", "smooth projective variety", "rham complex" ], "tags": [ "journal article" ], "publication": { "publisher": "Elsevier", "journal": "Adv. Math." }, "note": { "typesetting": "TeX", "pages": 30, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1112.0425I" } } }