An Upper Bound on the Minimum Weight of Type II $\ZZ_{2k}$-Codes
Masaaki Harada, Tsuyoshi Miezaki · arXiv (Cornell University) · 2009
In this paper, we give a new upper bound on the minimum Euclidean weight of Type II $\ZZ_{2k}$-codes and the concept of extremality for the Euclidean weights when $k=3,4,5,6$. Together with the known result, we demonstrate that there is an extremal Type II $\ZZ_{2k}$-code of length $8m$ $(m \le 8)$ when $k=3,4,5,6$.