Some Restrictions on Orders of Abelian Planar Difference Sets
نویسنده
چکیده
The Prime Power Conjecture (PPC) states that abelian planar difference sets of order n exist only for n a prime power. Lander and others have shown that orders divisible by certain composites can be eliminated. In this paper we show how to extend this list of excluded orders.
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تاریخ انتشار 1997