{ "id": "1012.4134", "version": "v3", "published": "2010-12-19T00:27:50.000Z", "updated": "2011-08-03T10:39:03.000Z", "title": "On triply even binary codes", "authors": [ "Koichi Betsumiya", "Akihiro Munemasa" ], "comment": "21 pages + appendix of 10 pages. Minor revision", "journal": "J. London Math. Soc. (2) 86 (2012) 1-16", "doi": "10.1112/jlms/jdr054", "categories": [ "math.CO" ], "abstract": "A triply even code is a binary linear code in which the weight of every codeword is divisible by 8. We show how two doubly even codes of lengths m_1 and m_2 can be combined to make a triply even code of length m_1+m_2, and then prove that every maximal triply even code of length 48 can be obtained by combining two doubly even codes of length 24 in a certain way. Using this result, we show that there are exactly 10 maximal triply even codes of length 48 up to equivalence.", "revisions": [ { "version": "v3", "updated": "2011-08-03T10:39:03.000Z" } ], "analyses": { "subjects": [ "05E20", "05E30", "94B05" ], "keywords": [ "binary codes", "binary linear code", "equivalence" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1012.4134B" } } }