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arXiv 1002.0295cs.ITcs.DMmath.COmath.IT
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关于提升完美码

On lifting perfect codes

Josep Rifà, Victor Zinoviev

摘要:

在本文中,我们考虑完全正规码,从完美(汉明码)码通过提升地面领域。更确切地说,对于给定的具有奇偶校验矩阵H_m的F_q上的长度为n=(q^m-1)/(q-1)的完美码C,我们定义了具有该奇偶检验矩阵H_m的F_{q^r}上的长度为n的新码C_{(m,r)},r > 1。得到的码C_{(m,r)}是完全正则的,覆盖半径R = min{r,m}。我们计算这些代码的交集数,最后,我们证明了汉明码是唯一的代码,提升地面领域后,导致完全正规的代码。

英文摘要:

In this paper we consider completely regular codes, obtained from perfect (Hamming) codes by lifting the ground field. More exactly, for a given perfect code C of length n=(q^m-1)/(q-1) over F_q with a parity check matrix H_m, we define a new code C_{(m,r)} of length n over F_{q^r}, r > 1, with this parity check matrix H_m. The resulting code C_{(m,r)} is completely regular with covering radius R = min{r,m}. We compute the intersection numbers of such codes and, finally, we prove that Hamming codes are the only codes that, after lifting the ground field, result in completely regular codes.

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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