Ternary dual codes of the planes of order nine
نویسندگان
چکیده
We determine the minimum weight of the ternary dual codes of each of the four projective planes of order 9, and of the seven affine planes of order 9. The proof includes a construction of a word of small, sometimes minimal, weight in the dual code of any plane of square order containing a Baer subplane. Dedicated to S. S. Shrikhande
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