{ "id": "0905.1427", "version": "v3", "published": "2009-05-09T20:09:50.000Z", "updated": "2009-12-25T21:55:02.000Z", "title": "Grothendieck-Serre conjecture for adjoint groups of types E_6 and E_7 and for certain classical groups", "authors": [ "I. Panin", "V. Petrov", "A. Stavrova" ], "comment": "3 pages", "categories": [ "math.AG", "math.GR" ], "abstract": "Assume that R is a semi-local regular ring containing an infinite perfect field, or that R is a semi-local ring of several points on a smooth scheme over an infinite field. Let K be the field of fractions of R. Let H be a strongly inner adjoint simple algebraic group of type E_6 or E_7 over R, or any twisted form of one of the split groups of classical type O^+_{n,R}, n>=4; PGO_{n,R}, n>=4; PSp_{2n,R}, n>=2; PGL_{n,R}, n>=2. We prove that the kernel of the map H^1_{et}(R,H)-> H^1_{et}(K,H) induced by the inclusion of R into K is trivial. This continues the recent series of papers by the authors and N. Vavilov on the Grothendieck--Serre conjecture.", "revisions": [ { "version": "v3", "updated": "2009-12-25T21:55:02.000Z" } ], "analyses": { "keywords": [ "grothendieck-serre conjecture", "adjoint groups", "classical groups", "inner adjoint simple algebraic group", "strongly inner adjoint simple algebraic" ], "note": { "typesetting": "TeX", "pages": 3, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0905.1427P" } } }