New extremal singly even self-dual codes of lengths 64 and 66

نویسندگان

  • Damyan Anev
  • Masaaki Harada
  • Nikolay Yankov
چکیده

For lengths 64 and 66, we construct extremal singly even self-dual codes with weight enumerators for which no extremal singly even selfdual codes were previously known to exist. We also construct new 40 inequivalent extremal doubly even self-dual [64, 32, 12] codes with covering radius 12 meeting the Delsarte bound.

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عنوان ژورنال:
  • CoRR

دوره abs/1708.05950  شماره 

صفحات  -

تاریخ انتشار 2017