Weight distribution of some reducible cyclic codes
Weight distribution of some reducible cyclic codes
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DOI:
10.1016/j.ffa.2007.03.003
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发表时间:
2008-04
期刊:
影响因子:
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通讯作者:
K. Feng;Jinquan Luo
中科院分区:
文献类型:
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作者:
K. Feng;Jinquan Luo
Let q=pmwhere p is an odd prime, m⩾3, k⩾1 and gcd(k,m)=1. Let Tr be the trace mapping from Fqto Fpand ζp=e2πip. In this paper we determine the value distribution of following two kinds of exponential sums and where χ(x)=ζpTr(x)is the canonical additive character of Fq. As an application, we determine the weight distribution of the cyclic codes C1and C2over Fpwith parity-check polynomial h2(x)h3(x) and h1(x)h2(x)h3(x), respectively, where h1(x), h2(x) and h3(x) are the minimal polynomials of π−1, π−2and [Formula: see text] over Fp, respectively, for a primitive element π of Fq.