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arXiv 1609.09669cs.ITmath.IT
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相对双权$\mathbb{Z}_2 \mathbb{Z}_4$ -可加码

Relative two-weight $\mathbb{Z}_2 \mathbb{Z}_4$-additive Codes

N. Annamalai, C. Durairajan

摘要:

本文研究了一类相对双权$\mathbb{Z}_2 \mathbb{Z}_4$ -可加码。证明了二进制距离$\mathbb{Z}_2 \mathbb{Z}_4$ -可加码的Gray像是二进制二距离码,二进制部分非平凡的相对二权$\mathbb{Z}_2 \mathbb{Z}_4$ -可加码的Gray像是线性二进制相对二权码.描述了相对双权$\mathbb{Z}_2 \mathbb{Z}_4$ -加性码的结构。最后讨论了一类$\mathbb{Z}_2 \mathbb{Z}_4$ -可加码的置换自同构群。

英文摘要:

In this paper, we study a relative two-weight $\mathbb{Z}_2 \mathbb{Z}_4$-additive codes. It is shown that the Gray image of a two-distance $\mathbb{Z}_2 \mathbb{Z}_4$-additive code is a binary two-distance code and that the Gray image of a relative two-weight $\mathbb{Z}_2 \mathbb{Z}_4$-additive code, with nontrivial binary part, is a linear binary relative two-weight code. The structure of relative two-weight $\mathbb{Z}_2 \mathbb{Z}_4$-additive codes are described. Finally, we discussed permutation automorphism group of a $\mathbb{Z}_2 \mathbb{Z}_4$-additive codes.

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