Projective geometries over finite fields
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Cites background or methods or result from "Projective geometries over finite f..."
...Hence {L0, L1} and {L0, L1} are the reguli of an hyperbolic quadric Q+ of PG(3, q) [80]....
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...a (q + 2)-arc [80], of the projective plane PG(2, q), q = 2h, and let PG(2, q) = H be embedded as a plane in PG(3, q) = P ....
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...Then O′ is an oval with nucleus x [80]....
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...Since each plane of order s, s 6 8, is desarguesian [80], the result follows....
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...,Mq are contained in a three dimensional space P , and moreover {L0, L1} and {L0, L1} are the reguli of an hyperbolic quadric Q+ of P [80]....
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Cites background from "Projective geometries over finite f..."
...Then O is a set of n = q+2 points, no three collinear, with the property that if L is a line then | L n O \ = 0 or 2. There are unique examples when q = 2 or q = 4 but many projectively different examples for large q (Hirschfeld [ 33, Chapter 8 ])....
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