Cyclic quasi-symmetric designs and self-orthogonal codes of length 63☆
The enumeration of binary cyclic self-orthogonal codes of length 63 is used to prove that any cyclic quasi-symmetric 2-(63, 15, 35) design with block intersection numbers x=3 and y=7 is isomorphic to the geometric design having as blocks the three-dimensional subspaces in PG(5, 2).
Journal of Statistical Planning and Inference
Cyclic quasi-symmetric designs and self-orthogonal codes of length 63☆.
Journal of Statistical Planning and Inference,
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