MacWilliams identities of linear codes and their dual codes over ring Z_(2~k)
Rui Yi-he · Journal of Anhui University · 2010
A new Hadamard transformation over ring Z2k was defined,and complete weight enumerator and Hamming weight enumerator of linear code over ring Z2k were given.Finally,by using Hadamard transform ation,the MacWilliams identities of linear codes and their dual codes over ring Z2k were proved in the paper.