{ "id": "1104.5690", "version": "v1", "published": "2011-04-29T18:06:07.000Z", "updated": "2011-04-29T18:06:07.000Z", "title": "Twisted conjugacy in braid groups", "authors": [ "Juan González-Meneses", "Enric Ventura" ], "categories": [ "math.GR" ], "abstract": "In this note we solve the twisted conjugacy problem for braid groups, i.e. we propose an algorithm which, given two braids $u,v\\in B_n$ and an automorphism $\\phi \\in Aut (B_n)$, decides whether $v=(\\phi (x))^{-1}ux$ for some $x\\in B_n$. As a corollary, we deduce that each group of the form $B_n \\rtimes H$, a semidirect product of the braid group $B_n$ by a torsion-free hyperbolic group $H$, has solvable conjugacy problem.", "revisions": [ { "version": "v1", "updated": "2011-04-29T18:06:07.000Z" } ], "analyses": { "subjects": [ "20F36", "20F10" ], "keywords": [ "braid group", "torsion-free hyperbolic group", "solvable conjugacy problem", "semidirect product", "twisted conjugacy problem" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1104.5690G" } } }