{ "id": "1903.01832", "version": "v1", "published": "2019-03-05T14:10:56.000Z", "updated": "2019-03-05T14:10:56.000Z", "title": "Self-orthogonal codes from equitable partitions of association schemes", "authors": [ "Dean Crnkovic", "Sanja Rukavina", "Andrea Svob" ], "comment": "14 pages", "categories": [ "math.CO" ], "abstract": "We give a method of constructing self-orthogonal codes from equitable partitions of association schemes. By applying this method we construct self-orthogonal codes from some distance-regular graphs. Some of the obtained codes are optimal. Further, we introduce a notion of self-orthogonal subspace codes. We show that under some conditions equitable partitions of association schemes yield such self-orthogonal subspace codes and we give some examples from distance-regular graphs.", "revisions": [ { "version": "v1", "updated": "2019-03-05T14:10:56.000Z" } ], "analyses": { "subjects": [ "05E30", "05E18", "94B05", "94B60" ], "keywords": [ "self-orthogonal subspace codes", "distance-regular graphs", "construct self-orthogonal codes", "association schemes yield", "constructing self-orthogonal codes" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable" } } }