{ "id": "1007.2870", "version": "v2", "published": "2010-07-16T21:10:56.000Z", "updated": "2011-04-07T15:02:54.000Z", "title": "The Number System of the Permutations Generated by Cyclic Shift", "authors": [ "Stéphane Legendre" ], "comment": "14 pages", "categories": [ "math.CO" ], "abstract": "A number system coding for the permutations generated by cyclic shift is described. The system allows to find the rank of a permutation given how it has been generated, and to determine a permutation given its rank. It defines a code describing the symmetry properties of the set of permutations generated by cyclic shift. This code is conjectured to be a combinatorial Gray code listing the set of permutations: this corresponds to an Hamiltonian path of minimal weight in an appropriate regular digraph.", "revisions": [ { "version": "v2", "updated": "2011-04-07T15:02:54.000Z" } ], "analyses": { "subjects": [ "05A05" ], "keywords": [ "cyclic shift", "permutations", "number system", "appropriate regular digraph", "minimal weight" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1007.2870L" } } }