{ "id": "1411.3647", "version": "v1", "published": "2014-11-13T18:20:52.000Z", "updated": "2014-11-13T18:20:52.000Z", "title": "The infinite cyclohedron and its automorphism group", "authors": [ "Ariadna Fossas Tenas", "Jon McCammond" ], "comment": "18 pages, 8 figures", "categories": [ "math.GR", "math.CO", "math.GT" ], "abstract": "Cyclohedra are a well-known infinite familiy of finite-dimensional polytopes that can be constructed from centrally symmetric triangulations of even-sided polygons. In this article we introduce an infinite-dimensional analogue and prove that the group of symmetries of our construction is a semidirect product of a degree 2 central extension of Thompson's infinite finitely presented simple group T with the cyclic group of order 2. These results are inspired by a similar recent analysis by the first author of the automorphism group of an infinite-dimensional associahedron.", "revisions": [ { "version": "v1", "updated": "2014-11-13T18:20:52.000Z" } ], "analyses": { "keywords": [ "automorphism group", "infinite cyclohedron", "well-known infinite familiy", "finite-dimensional polytopes", "centrally symmetric triangulations" ], "note": { "typesetting": "TeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1411.3647F" } } }