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arXiv 1503.03394cs.ITmath.COmath.IT
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二元线性码的新上界及一种Gray像优于线性码的$\u2124_4$-码

New upper bounds on binary linear codes and a $\mathbb Z_4$-code with a better-than-linear Gray image

Michael Kiermaier, Alfred Wassermann, Johannes Zwanzger

AI总结:

本研究利用整数线性规划与查表法证明特定参数二元线性码不存在,验证了扩展对偶化Kerdock码$\u0125{\u2113}^*_{6}$的Gray像性能优于所有同参数二元线性码,扩充了相关$\u2124_4$-码列表。

摘要:

我们利用整数线性规划与查表法,证明不存在二元线性$[1988, 12, 992]$码。作为附带结果,我们还证明了参数为$[324, 10, 160]$、$[356, 10, 176]$、$[772,11,384]$和$[836,11,416]$的二元线性码均不存在。本研究的动机源于近期构造的扩展对偶化Kerdock码$\u0125{\u2113}^*_{6}$,这是一种$\u2124_4$-线性码,其非线性二元Gray像的参数为$(1988,2^{12},992)$。根据我们的结果,$\u0125{\u2113}^*_{6}$码可被纳入已知Gray像优于任意二元线性码的少数$\u2124_4$-码列表中。

英文摘要:

Using integer linear programming and table-lookups we prove that there is no binary linear $[1988, 12, 992]$ code. As a by-product, the non-existence of binary linear codes with the parameters $[324, 10, 160]$, $[356, 10, 176]$, $[772,11,384]$, and $[836,11,416]$ is shown. Our work is motivated by the recent construction of the extended dualized Kerdock code $\hat{\mathcal{K}}^*_{6}$, which is a $\mathbb{Z}_4$-linear code having a non-linear binary Gray image with the parameters $(1988,2^{12},992)$. By our result, the code $\hat{\mathcal{K}}^*_{6}$ can be added to the small list of $\mathbb{Z}_4$-codes for which it is known that the Gray image is better than any binary linear code.

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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