Abstract
Among binary images of a Type II code over F 2 r with respect to the trace-orthogonal bases, it has been unknown whether the minimum Hamming weights depend on the choice of bases or not; the minimum Hamming weights of the binary images of known Type II codes have been independent of the choice of bases. In this paper we give a complete list of Type II codes over F 64 of length 8 up to a certain equivalence. This list shows us an example of a Type II code of which minimum Lee weight depends on the choice of a basis.
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