{ "id": "1111.6292", "version": "v2", "published": "2011-11-27T20:29:18.000Z", "updated": "2011-12-26T15:27:46.000Z", "title": "On abstract representations of the groups of rational points of algebraic groups and their deformations", "authors": [ "Igor A. Rapinchuk" ], "comment": "minor corrections, typos fixed", "categories": [ "math.GR", "math.AG" ], "abstract": "In this paper, we continue our study of abstract representations of elementary subgroups of Chevalley groups of rank $\\geq 2.$ First, we extend our earlier methods to analyze representations of elementary groups over arbitrary associative rings, and as a consequence, prove the conjecture of Borel and Tits on abstract homomorphisms of the groups of rational points of algebraic groups for groups of the form ${\\bf SL}_{n,D}$, where $D$ is a finite-dimensional central division algebra over a field of characteristic zero. Second, we apply our results to study deformations of representations of elementary subgroups of universal Chevalley groups of rank $\\geq 2$ over finitely generated commutative rings.", "revisions": [ { "version": "v2", "updated": "2011-12-26T15:27:46.000Z" } ], "analyses": { "subjects": [ "20G35" ], "keywords": [ "abstract representations", "rational points", "algebraic groups", "finite-dimensional central division algebra", "elementary subgroups" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1111.6292R" } } }