{ "id": "2403.19954", "version": "v1", "published": "2024-03-29T03:19:42.000Z", "updated": "2024-03-29T03:19:42.000Z", "title": "Billiards in polyhedra: a method to convert 2-dimensional uniformity to 3-dimensional uniformity", "authors": [ "J. Beck", "W. W. L. Chen", "Y. Yang" ], "comment": "5 pages, 1 figure", "categories": [ "math.DS", "math.NT" ], "abstract": "The class of 2-dimensional non-integrable flat dynamical systems has a rather extensive literature with many deep results, but the methods developed for this type of problems, both the traditional approach via Teichm\\\"{u}ller geometry and our recent shortline-ancestor method, appear to be exclusively plane-specific. Thus we know very little of any real significance concerning 3-dimensional systems. Our purpose here is to describe some very limited extensions of uniformity in 2 dimensions to uniformity in 3 dimensions. We consider a 3-manifold which is the cartesian product of the regular octagonal surface with the unit torus. This is a restricted system, in the sense that one of the directions is integrable. However, this restriction also allows us to make use of a transference theorem for arithmetic progressions established earlier by Beck, Donders and Yang.", "revisions": [ { "version": "v1", "updated": "2024-03-29T03:19:42.000Z" } ], "analyses": { "subjects": [ "37E35", "11K38" ], "keywords": [ "uniformity", "regular octagonal surface", "arithmetic progressions established earlier", "shortline-ancestor method", "real significance" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }