该文定义了有限非链环环码的关系,证明了此环上(1+uv)-循环码在关于齐次重量的等距Gray映射fhom下的二元象是一个长为8n的4-准循环码,并由此映射得到了一些好的二元线性准循环码。
(1+uv)-cyclic codes over F2+uF2+vF2+uvF2 is defined, and the relations between (1+uv)-cyclic codes and cyclic codes is discussed. It is proved that the binary image on isometric Gray map ?hom of a (1+uv)-cyclic code of length n over R is a linear quasi-cyclic code of index 4 and of length 8n. Furthermore, some optimal binary linear quasi-cyclic codes are obtained.