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The small weight codewords of the functional codes associated to non-singular Hermitian varieties

机译:与非奇异的Hermitian变体相关的功能代码的小权重代码字

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摘要

This article studies the small weight codewords of the functional code C_(Herm) (X), with X a non-singular Hermitian variety of PG(N, q~2). The main result of this article is that the small weight codewords correspond to the intersections of X with the singular Hermitian varieties of PG(N, q~2) consisting of q + 1 hyperplanes through a common (N - 2)-dimen-sional space Π, forming a Baer subline in the quotient space of Π. The number of codewords having these small weights is also calculated. In this way, similar results are obtained to the functional codes C_2(Q), Q a non-singular quadric (Edoukou et al., J. Pure Appl. Algebra 214:1729-1739, 2010), and C_2(X), X a non-singular Hermitian variety (Hallez and Storme, Finite Fields Appl. 16:27-35, 2010).
机译:本文研究功能码C_(Herm)(X)的小权重码字,其中X是PG(N,q〜2)的非奇异Hermitian变体。本文的主要结果是,较小的权重码字对应于X与PG(N,q〜2)的奇异Hermitian变体的交点,该交变点由q + 1个超平面组成,并通过共同的(N-2)维在,的商空间中形成Baer子线。还计算具有这些小的权重的代码字的数量。以此方式,获得与功能码C_2(Q),Q a非奇异二次曲面相似的结果(Edoukou等人,J。Pure Appl。Algebra 214:1729-1739,2010)和C_2(X), X是非奇异的埃尔米特变种(Hallez and Storme,Finite Fields Appl.16:27-35,2010)。

著录项

  • 来源
    《Designs, Codes and Crytography》 |2010年第3期|P.219-233|共15页
  • 作者单位

    Division of Mathematical Sciences, School of Physical and Mathematical Sciences, Nanyang Technological University, SPMS-04-01, 21 Nanyang Link, Singapore 637371, Singapore;

    rnDepartment of Mathematics, Ghent University, Krijgslaan 281-S22, 9000 Ghent, Belgium;

    rnCNRS, Institut de Mathematiques de Luminy, Luminy case 907, 13288 Marseille cedex 9, France;

    rnDepartment of Mathematics, Ghent University, Krijgslaan 281-S22, 9000 Ghent, Belgium;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    functional codes; hermitian variety; small weight codewords;

    机译:功能代码;埃尔米特变种;小重量码字;

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