<p>Given the finite field <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\mathbb {F}_{q}\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi mathvariant="double-struck">F</mi> <mi>q</mi> </msub> </math></EquationSource> </InlineEquation>, for a prime power <i>q</i>, in this paper we present a way of constructing spreads of <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\mathbb {F}_{q}^{n}\)</EquationSource> <EquationSource Format="MATHML"><math> <msubsup> <mi mathvariant="double-struck">F</mi> <mrow> <mi>q</mi> </mrow> <mi>n</mi> </msubsup> </math></EquationSource> </InlineEquation>. Specifically, through the field reduction technique, we will construct the well-known Desarguesian spread of <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(\mathbb {F}_{q}^{n}\)</EquationSource> <EquationSource Format="MATHML"><math> <msubsup> <mi mathvariant="double-struck">F</mi> <mrow> <mi>q</mi> </mrow> <mi>n</mi> </msubsup> </math></EquationSource> </InlineEquation>, using for this purpose the action of an Abelian but not cyclic group. First, we construct a family of orbit codes of maximum distance using this group, and then we complete each of these codes to achieve the Desarguesian spread of the whole space, which will thus have a new orbital structure associated with an Abelian and non-cyclic group.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Spread codes from Abelian non-cyclic groups

  • Joan-Josep Climent,
  • Verónica Requena,
  • Xaro Soler-Escrivà

摘要

Given the finite field \(\mathbb {F}_{q}\) F q , for a prime power q, in this paper we present a way of constructing spreads of \(\mathbb {F}_{q}^{n}\) F q n . Specifically, through the field reduction technique, we will construct the well-known Desarguesian spread of \(\mathbb {F}_{q}^{n}\) F q n , using for this purpose the action of an Abelian but not cyclic group. First, we construct a family of orbit codes of maximum distance using this group, and then we complete each of these codes to achieve the Desarguesian spread of the whole space, which will thus have a new orbital structure associated with an Abelian and non-cyclic group.