Intersections of Hyperconics in Projective Planes of Even Order
β Scribed by Aiden A. Bruen; James M. McQuillan
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 204 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1071-5797
No coin nor oath required. For personal study only.
β¦ Synopsis
We show how to lift the even intersection equivalence relation from the hyperovals of PG(2, 4) to an equivalence relation amongst sets of hyperconics in "PG(2, F ). Here, F is any "nite or in"nite "eld of characteristic two that contains a sub"eld of order 4, but does not contain a sub"eld of order 8. Moreover, we are able to determine the number of points that two hyperconics in will have in common provided some projective subplane of order 4 intersects both of them in hexads.
π SIMILAR VOLUMES
We construct by computer all of the hyperovals in the 22 known projective planes of order 16. Our most interesting result is that four of the planes contain no hyperovals, thus providing counterexamples to the old conjecture that every finite projective plane contains an oval.
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