Let F be a flock of the quadratic cone Q: X 2 2 =X 1 X 3 , in PG(3, q), q even, and let 6 t : X 0 = x t X 1 + t 1ร2 X 2 + z t X 3 , t # F q , be the q planes defining the flock F. A flock is equivalent to a herd of ovals in PG(2, q), q even, and to a flock generalized quadrangle of order (q 2 , q).
On Monomial Flocks
โ Scribed by Laura Bader; Dina Ghinelli; Tim Penttila
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 121 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0195-6698
No coin nor oath required. For personal study only.
โฆ Synopsis
We study monomial flocks of quadratic cones of P G(3, q), with emphasis on the case where the flock is semifield, providing some nonexistence and some uniqueness results. In addition, we give a computer-free proof of the existence of the sporadic semifield flock of the quadratic cone of P G(3, 3 5 ) (and hence of the sporadic translation ovoid of Q(4, 3 5 )), and relate that flock to the sporadic simple group M 11 .
๐ SIMILAR VOLUMES
In PG (3, q), q even, Cherowitzo made a detailed study of flocks of a cone with a translation oval as base; also called -flocks . To a flock of a quadratic cone in PG(3, q), q even, there always corresponds a set of q#1 ovals in PG(2, q), called an oval herd. To an -flock of a cone with an arbitrary
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