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The complete classification of [21s+4,3] optimal self-orthogonal codes for sges1 is obtained, and the generator matrices and weight polynomials of these 3-dimensional optimal self-orthogonal codes are also given. All these codes meeting the Griesmer bound.
The classification of quaternary [21s+t,3,d] codes with dges16s and without zero coordinates is reduced to the classification of quaternary [21c(3,s,t)+t,k,d] code for sges1 and 0lestles20, where c(3,s,t)les min{s, 3t} is a function of 3, s, and t. Quaternary optimal Hermitian self-orthogonal codes are characterized by systems of linear equations. Based on these two results, the complete classification...
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