2 research outputs found

    New extremal singly even self-dual codes of lengths 6464 and 6666

    Get PDF
    For lengths 6464 and 6666, we construct extremal singly even self-dual codes with weight enumerators for which no extremal singly even self-dual codes were previously known to exist. We also construct new 4040 inequivalent extremal doubly even self-dual [64,32,12][64,32,12] codes with covering radius 1212 meeting the Delsarte bound.Comment: 13 pages. arXiv admin note: text overlap with arXiv:1706.0169
    corecore