Ovoids of PG(3, q), q even, with a conic section

被引:23
|
作者
Brown, MR [1 ]
机构
[1] Univ Ghent, Dept Pure Math & Comp Algebra, B-9000 Ghent, Belgium
基金
澳大利亚研究理事会;
关键词
D O I
10.1112/S0024610700001137
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
It is shown that if a plane of PG(3, q), q even, meets an ovoid in a conic, then the ovoid must be an elliptic quadric. This is proved by using the generalized quadrangles T-2(l) (l a conic), W(q) and the isomorphism between them to show that every secant plane section of the ovoid must be a conic. The result then follows from a well-known theorem of Barlotti.
引用
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页码:569 / 582
页数:14
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