• Communications of the Korean Mathematical Society
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• v.27 no.4
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• pp.653-664
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• 2012

We study the abstract structure of the automorphism group of the ternary self-dual code of length 8 and give its convenient presentation by generators.

• Korean Journal of Mathematics
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• v.17 no.4
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• pp.487-493
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• 2009

We study the group structure of the automorphism group of the ternary self-dual tetracode of length 4.

• Korean Journal of Mathematics
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• v.20 no.4
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• pp.525-532
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• 2012

We study the extended quadratic residue code of length 24 over $\mathbb{Z}_3$ and its lifts to rings $\mathbb{Z}_{3^e}$ for all e including 3-adic integers ring. We completely determine the weight enumerators of all these lifts.