二次剩余码的自同构群
The automorphism group of quadratic-residue codes
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摘要: 针对二次剩余码的自同构置换建立了判定定理,利用矩阵的广义逆理论研究了二次剩余码的扩展码的自同构群,并用实例验证了相关结论.Abstract: The theorems on the automorphism permutation of the quadratic-residue codes are established.The theory of the generalized inverse is used to study the automorphism group of the extended quadratic-residue codes.The results are verified by some examples.