For generalized Zetterberg codes over odd-characteristic fields with q^s ≡ 7 mod 8, the covering radius is 2 for s=1, 3 for s≥s*, and in general characterized by a solvability condition; twisted half versions inherit these values.
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Determining the covering radius of all generalized Zetterberg codes in odd characteristic
For generalized Zetterberg codes over odd-characteristic fields with q^s ≡ 7 mod 8, the covering radius is 2 for s=1, 3 for s≥s*, and in general characterized by a solvability condition; twisted half versions inherit these values.