{ "id": "1112.1886", "version": "v4", "published": "2011-12-08T17:19:02.000Z", "updated": "2014-04-02T11:52:35.000Z", "title": "A GIT interpretration of the Harder-Narasimhan filtration", "authors": [ "Tomas L. Gomez", "Ignacio Sols", "Alfonso Zamora" ], "comment": "19 pages; Comments of the referees and references added. The construction for holomorphic pairs (Sections 6 and 7 from previous version) will appear in a further publication. To appear in Rev. Mat Complutense", "doi": "10.1007/s13163-014-0149-3", "categories": [ "math.AG" ], "abstract": "An unstable torsion free sheaf on a smooth projective variety gives a GIT unstable point in certain Quot scheme. To a GIT unstable point, Kempf associates a \"maximally destabilizing\" 1-parameter subgroup, and this induces a filtration of the torsion free sheaf. We show that this filtration coincides with the Harder-Narasimhan filtration.", "revisions": [ { "version": "v4", "updated": "2014-04-02T11:52:35.000Z" } ], "analyses": { "subjects": [ "14D20", "14L24" ], "keywords": [ "harder-narasimhan filtration", "git interpretration", "git unstable point", "unstable torsion free sheaf", "kempf associates" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1112.1886G" } } }