{ "id": "math/0608529", "version": "v2", "published": "2006-08-21T22:31:02.000Z", "updated": "2006-09-28T05:08:45.000Z", "title": "Periodic orbits in outer billiards", "authors": [ "Alexander Tumanov", "Vadim Zharnitsky" ], "categories": [ "math.DS", "math-ph", "math.MP" ], "abstract": "It is shown that the set of 4-period orbits in outer billiard with piecewise smooth convex boundary has an empty interior, provided that no four corners of the boundary form a parallelogram.", "revisions": [ { "version": "v2", "updated": "2006-09-28T05:08:45.000Z" } ], "analyses": { "keywords": [ "outer billiard", "periodic orbits", "piecewise smooth convex boundary", "boundary form", "empty interior" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math......8529T" } } }