LI Ping, LI Shan-shan, TANG Yong-sheng. A Type of MacWilliams Identity for Linear Codes over Z4+uZ4 on Lee Weight[J]. Acta Electronica Sinica, 2015, 43(12): 2461-2465.
LI Ping, LI Shan-shan, TANG Yong-sheng. A Type of MacWilliams Identity for Linear Codes over Z4+uZ4 on Lee Weight[J]. Acta Electronica Sinica, 2015, 43(12): 2461-2465. DOI: 10.3969/j.issn.0372-2112.2015.12.017.
MacWilliams identity is an useful tool in studying weight distributions of linear codes and their duals.Weight distribution is also an important topic of coding theory.This paper defines the
m
-ply Lee weight enumerators for linear codes of length
n
over Z4+
u
Z4.We give a type of Mac-Williams identity for linear codes of length
n
over Z4+
u
Z4 on Lee weight.We prove that this identity is the MacWilliams identity on Lee weight for linear codes over GR(4
m
)+
u
GR(4
m
)having generator matrix over Z4+
u
Z4.Furthermore
by means of Krawtchouk polynomials the eq
uivalent form of the type of MacWilliams identity for linear codes of length