数学物理学报

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广义Hamming重量与码的半线性等价

刘宏伟   

  1. 华中师范大学数学与统计学院 武汉 430079
  • 收稿日期:2004-05-24 修回日期:2005-12-28 出版日期:2006-10-25 发布日期:2006-10-25
  • 通讯作者: 刘宏伟
  • 基金资助:
    国家自然科学基金(10571067)资助

Generalized Hamming Weights and Semilinear Equivalence of Codes

Liu Hongwei
  

  1. School of Mathematics and Statistics, Central China Normal University, Wuhan 430079
  • Received:2004-05-24 Revised:2005-12-28 Online:2006-10-25 Published:2006-10-25
  • Contact: Liu Hongwei

摘要: 设σ是域F/b的一个自同构,该文证明两个线性码之间的任一保持一个 广义Hamming重量的σ-半线性同构是一个σ-半线性单项等价.

关键词: 码的等价, 广义Hamming重量, 半线性保距同, 半线性单项等价

Abstract:

Let σ be an automorphism on a field ( F. It is proved in this paper that any σ-semilinear isomorphism between two linear codes which preserves one generalized Hamming weight is a σ -semilinear monomial equivalence.

Key words: Equivalence of codes, Generalized Hamming weight, Semilinear isometry, Semilinear monomial equivalence

中图分类号: 

  • 94B05