Weight distributions of cyclic codes with respect to pairwise coprime order elements
Weight distributions of cyclic codes with respect to pairwise coprime order elements
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DOI:
10.1016/j.ffa.2014.01.009
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发表时间:
2013-06
期刊:
影响因子:
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通讯作者:
Chengju Li;Q. Yue;Fengwei Li
中科院分区:
文献类型:
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作者:
Chengju Li;Q. Yue;Fengwei Li
Let F r be an extension of a finite field F q with r= q m. Let each g i be of order n i in F r⁎ and gcd(n i, n j)= 1 for 1⩽ i≠ j⩽ u. We define a cyclic code over F q by C (q, m, n 1, n 2,…, n u)={C (a 1, a 2,…, a u): a 1, a 2,…, a u∈ F r}, where C (a 1, a 2,…, a u)=(Tr r/q (∑ i= 1 u a i g i 0),…, Tr r/q (∑ i= 1 u a i g i n− 1)) and n= n 1 n 2⋯ n u. In this paper, we present a method to compute the weights of C (q, m, n 1, n 2,…, n u). Further, we determine the weight distributions of the cyclic codes C (q, m, n 1, n 2) and C (q, m, n 1, n 2, 1).