New semiregular divisible difference sets
نویسنده
چکیده
We modify and generalize the construction by McFarland (1973) in two different ways to construct new semiregular divisible difference sets (DDSs) with 21 ~ 0. The parameters of the DDS fall into a family of parameters found in Jungnickel (1982), where his construction is for divisible designs. The final section uses the idea of a K-matrix to find DDSs with a nonelementary abelian forbidden subgroup. (~) 1998 Elsevier Science B.V. All rights reserved
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عنوان ژورنال:
- Discrete Mathematics
دوره 188 شماره
صفحات -
تاریخ انتشار 1998