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arXiv 2102.00475cs.ITmath.IT
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群矩阵环码与自对偶码的构造

Group Matrix Ring Codes and Constructions of Self-Dual Codes

Steven Dougherty, Adrian Korban, Serap Sahinkaya, Deniz Ustun

摘要:

在这项工作中,我们研究的代码所产生的元素,来自组矩阵环。我们提出了一个矩阵的建设,我们用来生成代码在两个不同的环境空间:矩阵环$M_k(R)$和环$R,$,其中$R$是交换Frobenius环。证明了环$M_k(R)$上的码是群矩阵环$M_k(R)G$中的单侧理想,环$R$上的相应码是长度为$kn.$的$G^k$-码。我们使用这个生成矩阵搜索二元自对偶码的参数$[72,36,12]$,并找到新的单偶和双偶码的这种类型。特别地,我们构造了$16$新I型和$4$新II型二元$[72,36,12]$自对偶码.

英文摘要:

In this work, we study codes generated by elements that come from group matrix rings. We present a matrix construction which we use to generate codes in two different ambient spaces: the matrix ring $M_k(R)$ and the ring $R,$ where $R$ is the commutative Frobenius ring. We show that codes over the ring $M_k(R)$ are one sided ideals in the group matrix ring $M_k(R)G$ and the corresponding codes over the ring $R$ are $G^k$-codes of length $kn.$ Additionally, we give a generator matrix for self-dual codes, which consist of the mentioned above matrix construction. We employ this generator matrix to search for binary self-dual codes with parameters $[72,36,12]$ and find new singly-even and doubly-even codes of this type. In particular, we construct $16$ new Type~I and $4$ new Type~II binary $[72,36,12]$ self-dual codes.

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