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arXiv 1808.06338cs.ITmath.IT
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关于有限域上长度为$2^e$的循环码

On cyclic codes of length $2^e$ over finite fields

Binbin Pang, Shixin Zhu, Ping Li

摘要:

丁存生教授给出了长度为两个素数乘积的循环码的分圆构造。本文研究了长度为$n=2^e$和维数为$k=2^{e-1}$的循环码。很显然,丁的建筑不是在这个地方举行的。本文描述了两种新的二阶广义割圆,它们不同于丁的割圆。此外,我们还研究了两类长度为$n$和维数为$k$的循环码。我们得到了这些循环码的计数。更重要的是,我们构造的所有码都是最好的循环码之一。此外,我们还研究了长度为$n$的循环码在$\mathbb{F}_q$上的壳。我们得到了$\ell=\dim({\rm Hull}(C))$的值域。我们构造并枚举了长度为$n$且具有给定维数的壳的循环码。

英文摘要:

Professor Cunsheng Ding gave cyclotomic constructions of cyclic codes with length being the product of two primes. In this paper, we study the cyclic codes of length $n=2^e$ and dimension $k=2^{e-1}$. Clearly, Ding's construction is not hold in this place. We describe two new types of generalized cyclotomy of order two, which are different from Ding's. Furthermore, we study two classes of cyclic codes of length $n$ and dimension $k$. We get the enumeration of these cyclic codes. What's more, all of the codes from our construction are among the best cyclic codes. Furthermore, we study the hull of cyclic codes of length $n$ over $\mathbb{F}_q$. We obtain the range of $\ell=\dim({\rm Hull}(C))$. We construct and enumerate cyclic codes of length $n$ having hull of given dimension.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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