{ "id": "math/0702495", "version": "v4", "published": "2007-02-16T18:12:38.000Z", "updated": "2008-02-01T08:51:23.000Z", "title": "Reversible maps and composites of involutions in groups of piecewise linear homeomorphisms of the real line", "authors": [ "Nick Gill", "Ian Short" ], "comment": "10 pages, 0 figures. Version 4 includes a few small clarifications and corrections. To appear in Aequationes Math", "categories": [ "math.GR", "math.DS" ], "abstract": "An element of a group is \\emph{reversible} if it is conjugate to its own inverse, and it is \\emph{strongly reversible} if it is conjugate to its inverse by an involution. A group element is strongly reversible if and only if it can be expressed as a composite of two involutions. In this paper the reversible maps, the strongly reversible maps, and those maps that can be expressed as a composite of involutions are determined in certain groups of piecewise linear homeomorphisms of the real line.", "revisions": [ { "version": "v4", "updated": "2008-02-01T08:51:23.000Z" } ], "analyses": { "subjects": [ "20E45", "37E05" ], "keywords": [ "piecewise linear homeomorphisms", "real line", "involution", "group element", "strongly reversible maps" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007math......2495G" } } }