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A formula on the weight distribution of linear codes with applications to AMDS codes
arXiv - CS - Discrete Mathematics Pub Date : 2020-03-31 , DOI: arxiv-2003.14063
Alessio Meneghetti; Marco Pellegrini; Massimiliano Sala

The determination of the weight distribution of linear codes has been a fascinating problem since the very beginning of coding theory. There has been a lot of research on weight enumerators of special cases, such as self-dual codes and codes with small Singleton's defect. We propose a new set of linear relations that must be satisfied by the coefficients of the weight distribution. From these relations we are able to derive known identities (in an easier way) for interesting cases, such as extremal codes, Hermitian codes, MDS and NMDS codes. Moreover, we are able to present for the first time the weight distribution of AMDS codes. We also discuss the link between our results and the Pless equations.
更新日期:2020-04-01

 

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