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arXiv 2502.04746cs.ITmath.IT
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关于$(\mathcal{L},\mathcal{P})$-扭曲广义Reed-Solomon码的研究

On $(\mathcal{L},\mathcal{P})$-Twisted Generalized Reed-Solomon Codes

Zhao Hu, Liang Wang, Nian Li, Xiangyong Zeng, Xiaohu Tang

AI总结:

本文提出$(\mathcal{L},\mathcal{P})$-TGRS码的精确定义,给出其MDS充要条件、自对偶充分条件及校验矩阵刻画,并通过Schur平方与组合方法构造出大量无限族非GRS MDS码。

摘要:

扭曲广义Reed-Solomon(TGRS)码是通过添加特定扭曲对广义Reed-Solomon(GRS)码的扩展,近年来引起了广泛关注。本文利用一种通用方法,对最一般形式的TGRS码进行了深入而全面的研究。首先,我们提出了一个更精确的定义来描述TGRS码,即$(\mathcal{L},\mathcal{P})$-TGRS码,并给出了$(\mathcal{L},\mathcal{P})$-TGRS码为MDS码的简洁充要条件,推广了先前工作中的相关结果。其次,我们明确刻画了$(\mathcal{L},\mathcal{P})$-TGRS码的校验矩阵,并给出了$(\mathcal{L},\mathcal{P})$-TGRS码为自对偶码的充分条件。最后,我们分别通过Schur平方和组合技巧对$(\mathcal{L},\mathcal{P})$-TGRS码的非GRS性质进行了深入研究。由此,我们获得了大量无限族的非GRS MDS码。

英文摘要:

Twisted generalized Reed-Solomon (TGRS) codes are an extension of the generalized Reed-Solomon (GRS) codes by adding specific twists, which attract much attention recently. This paper presents an in-depth and comprehensive investigation of the TGRS codes for the most general form by using a universal method. At first, we propose a more precise definition to describe TGRS codes, namely $(\mathcal{L},\mathcal{P})$-TGRS codes, and provide a concise necessary and sufficient condition for $(\mathcal{L},\mathcal{P})$-TGRS codes to be MDS, which extends the related results in the previous works. Secondly, we explicitly characterize the parity check matrices of $(\mathcal{L},\mathcal{P})$-TGRS codes, and provide a sufficient condition for $(\mathcal{L},\mathcal{P})$-TGRS codes to be self-dual. Finally, we conduct an in-depth study into the non-GRS property of $(\mathcal{L},\mathcal{P})$-TGRS codes via the Schur squares and the combinatorial techniques respectively. As a result, we obtain a large infinite families of non-GRS MDS 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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