NEW DOUBLY EVEN SELF-DUAL CODES HAVING MINIMUM WEIGHT 20

作者：Harada, Masaaki^*

来源：Advances in Mathematics of Communications, 2020, 14(1): 89-96.

DOI：10.3934/amc.2020007

• Self-dual code
• doubly even code
• four-circulant code
• minimum weight
• neighbor

In this note, we construct new doubly even self-dual codes having minimum weight 20 for lengths 112, 120 and 128. This implies that there are at least three inequivalent extremal doubly even self-dual codes of length 112.