{ "id": "2208.09077", "version": "v1", "published": "2022-08-18T21:54:00.000Z", "updated": "2022-08-18T21:54:00.000Z", "title": "A note on the Assmus--Mattson theorem for some binary codes II", "authors": [ "Eiichi Bannai", "Tsuyoshi Miezaki", "Hiroyuki Nakasora" ], "comment": "15 pages. arXiv admin note: text overlap with arXiv:2208.08617", "categories": [ "math.CO", "cs.IT", "math.GR", "math.IT", "math.NT" ], "abstract": "Let $C$ be a four-weight code, which has all one vector. Furthermore, we assume that $C_\\ell$ are $t$-designs for all $\\ell$ by the Assmus--Mattson theorem. We previously showed that $t\\leq 5$. In the present paper, we show an analogue of this result in the cases of five and six-weight codes.", "revisions": [ { "version": "v1", "updated": "2022-08-18T21:54:00.000Z" } ], "analyses": { "subjects": [ "05B05", "94B05", "20B25" ], "keywords": [ "assmus-mattson theorem", "binary codes", "four-weight code", "six-weight codes" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable" } } }