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Constructions of semi-regular relative difference sets
J. A. Davis, J. Jedwab, and M. Mowbray (1998, Des. Codes Cryptogr. 13, 131-146) gave two new constructions for semi-regular relative difference sets (RDSs). They asked if the two constructions could be unified. In this ...
Type II codes over F4+uF4
Self-dual codes over F4 for the Euclidean scalar product [2, 6] and over F2 + uF2 [1, 5] received some attention lately. In the present article, we study codes over an alphabet R of size 16 that contains both alphabets as ...