Repeated root constacyclic codes of length mp(s) over F-pr + uF(pr) + . . . + u(e-1) F-pr

摘要

We give the structure of lambda-constacyclic codes of length p(s)m over R = F-pr broken vertical bar u broken vertical bar/[u(e)] with lambda is an element of F-pr*. We also give the structure of lambda-constacyclic codes of length p(s)m with lambda = alpha(1) + u alpha(2) + . . . + u(e-1)alpha(e-1), and study the self-duality of these codes.