In this paper we show that blocking sets of cardinality less than 3(q ϩ 1)/2 (q ϭ p n ) in Desarguesian projective planes intersect every line in 1 modulo p points. It is also shown that the cardinality of a blocking set must lie in a few relatively short intervals. This is similar to previous resul
Cyclic affine planes and Paley difference sets
✍ Scribed by K.T. Arasu; Alexander Pott
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 350 KB
- Volume
- 106-107
- Category
- Article
- ISSN
- 0012-365X
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✦ Synopsis
The existence of a cyclic affine plane implies the existence of a Paley type difference set. We use the existence of this difference set to give the following condition on the existence of cyclic affine planes of order n: If n -8 mod 16 then n -1 must be a prime. We discuss the structure of the Paley type difference set constructed from the plane.
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