<p>In this paper, we explore skew cyclic codes over the ring <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="12190_2025_2613_Article_IEq3.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="146" /> </InlineMediaObject> <EquationSource Format="TEX">\(R = \mathbb{Z}_4 + u\mathbb{Z}_4 + v\mathbb{Z}_4\)</EquationSource> </InlineEquation>, where <InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="12190_2025_2613_Article_IEq4.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="51" /> </InlineMediaObject> <EquationSource Format="TEX">\(u^2 = u\)</EquationSource> </InlineEquation>, <InlineEquation ID="IEq5"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="12190_2025_2613_Article_IEq5.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="49" /> </InlineMediaObject> <EquationSource Format="TEX">\(v^2 = v\)</EquationSource> </InlineEquation>, and <InlineEquation ID="IEq6"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="12190_2025_2613_Article_IEq6.gif" Format="GIF" Height="14" Rendition="HTML" Resolution="72" Type="Linedraw" Width="90" /> </InlineMediaObject> <EquationSource Format="TEX">\(uv = vu = 0\)</EquationSource> </InlineEquation>. We consider an automorphism <i>θ</i> and explore generating sets of skew cyclic codes over <i>R</i>. We give a decomposition of linear codes over <i>R</i> and then use it to characterise skew cyclic codes. We define a Gray map to get codes over <InlineEquation ID="IEq7"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="12190_2025_2613_Article_IEq7.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="18" /> </InlineMediaObject> <EquationSource Format="TEX">\(\mathbb{Z}_4\)</EquationSource> </InlineEquation> and provide several examples of new codes obtained using it.</p>

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On the structure of skew-cyclic codes over \(\mathbb{Z}_4 + u\mathbb{Z}_4 + v\mathbb{Z}_4\)

  • Saumya Shah,
  • Amit Sharma

摘要

In this paper, we explore skew cyclic codes over the ring \(R = \mathbb{Z}_4 + u\mathbb{Z}_4 + v\mathbb{Z}_4\) , where \(u^2 = u\) , \(v^2 = v\) , and \(uv = vu = 0\) . We consider an automorphism θ and explore generating sets of skew cyclic codes over R. We give a decomposition of linear codes over R and then use it to characterise skew cyclic codes. We define a Gray map to get codes over \(\mathbb{Z}_4\) and provide several examples of new codes obtained using it.