The support weight distributions for Z_4- linear codes are discussed, and the generalized MacWilliams identities is given for the support weight distributions of a Z_4-linear code with type 4~(k_1) and its dual.

• 本文讨论了 Z4线性码的支集重量分布 ,并对类型为 4 k1的 Z4线性码 ,给出了联系它与对偶码的支集重量分布之间的广义 Mac Williams恒等式