Abstract
We give restrictions on the weight enumerators of ternary near-extremal self-dual codes of length divisible by 12 and quaternary near-extremal Hermitian self-dual codes of length divisible by 6. We consider the weight enumerators for which there is a ternary near-extremal self-dual code of length 12m for \(m =3,4,5,6\). Also we consider the weight enumerators for which there is a quaternary near-extremal Hermitian self-dual code of length 6m for \(m =4,5,6\).
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This work was supported by JSPS KAKENHI Grant Numbers 19H01802 and 21K03350.
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Araya, M., Harada, M. Some restrictions on the weight enumerators of near-extremal ternary self-dual codes and quaternary Hermitian self-dual codes. Des. Codes Cryptogr. 91, 1813–1843 (2023). https://doi.org/10.1007/s10623-022-01172-7
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DOI: https://doi.org/10.1007/s10623-022-01172-7
Keywords
- Self-dual code
- Weight enumerator
- t-design
- Near-extremal ternary self-dual code
- Near-extremal quaternary Hermitian self-dual code