Dual and self-dual negacyclic codes of even length over Z2a

Dual and self-dual negacyclic codes of even length over Z2a
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DOI:
10.1016/j.disc.2008.05.013
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发表时间:
2009-04
期刊:
Discret. Math.
影响因子:
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通讯作者:
Shixin Zhu;X. Kai
Shixin Zhu;X. Kai
中科院分区:
其他
文献类型:
--
作者:
Shixin Zhu;X. Kai

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本文确定了环上偶数长的非循环码的结构[公式:见正文]及其对偶码。此外,我们还研究了[公式:见正文]上偶数长度的自对偶双循环码。给出了非平凡自对偶双循环码存在的一个充要条件,并确定了给定偶数长度的自对偶双循环码的个数。
In this paper, we determine the structure of negacyclic codes of even length over the ring [Formula: see text] and their dual codes. Furthermore we study self-dual negacyclic codes of even length over [Formula: see text] . A necessary and sufficient condition for the existence of nontrivial self-dual negacyclic codes is given, and the number of the self-dual negacyclic codes for a given even length is determined.