主要讨论了Rk上的常循环码.证明了Rk上长为n的(1+uk)循环码在φ下的像是指数为2k-1长为2kn的二元拟循环码.研究了环Rk[x]/(xn-(1+uk)),得到了当n=2m时,Rk,n是局部环,当n=2ms,s>1是奇数时,Rk,n不是局部环.
Constacyclic codes over Rk were mainly discussed. It was proved that the image of a (1+uk)-constacyclic code of length n over Rk under Ф is a binary quasi-cyclic of index 2k- 1 and length 2kn.Rk[x]/(xn-(1+uk)) ring was studied. It was obtained that Rk,n is local when n=2m, that Rk,n is not local when n=2ms, where s〉1 is an odd number.