Ternary maximal self-orthogonal codes of lengths $21,22$ and $23$

Ternary maximal self-orthogonal codes of lengths $21,22$ and $23$

We give a classification of ternary maximal self-orthogonal codes of lengths $21,22$ and $23$. This completes a classification of ternary maximal self-orthogonal codes of lengths up to $24$.

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