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  • Some self-dual codes invari...
    Chigira, Naoki; Harada, Masaaki; Kitazume, Masaaki

    Journal of algebra, 10/2007, Letnik: 316, Številka: 2
    Journal Article

    We construct self-dual codes of length 100 invariant under the Hall–Janko group J 2 . We also construct a 2- ( 100 , 22 , 168 ) design with the automorphism group J 2 : 2 , which is the extension of J 2 by its outer automorphism.