On the PBD-closure of Sets Containing 3
نویسنده
چکیده
We describe a method used to prove nonexistence of pairwise balanced designs. We determine the exact closure of all subsets K of the set f3; 4
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ورودعنوان ژورنال:
- Discrete Applied Mathematics
دوره 95 شماره
صفحات -
تاریخ انتشار 1999