期刊
IEEE TRANSACTIONS ON INFORMATION THEORY
卷 50, 期 8, 页码 1728-1744出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIT.2004.831789
关键词
chain rings; cyclic codes; dual codes; linear codes; negacyclic codes; repeated-root negacyclic codes; self-dual codes
The structures of cyclic and negacyclic codes of length n and their duals over a finite chain ring (R) over bar are established when n is not divisible by the characteristic of the residue field (R) over bar. Some cases where n is divisible by the characteristic of the residue field (R) over bar are also considered. Namely, the structure of negacyclic codes of length 2(t) over Z(2m) and that of their duals are derived.
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