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Projective ovoids and generalized quadrangles
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Matthew R Brown
Published/Copyright:
February 16, 2007
Abstract
We consider a simple condition defining a tetradic set of ovoids in a projective three-space over a finite field. By elementary counting and geometrical methods we establish the properties of a tetradic set and are able to give a purely synthetic construction of the class of generalized quadrangles of order (s, s2) satisfying Property (G) at a flag. This includes the class of dual flock generalized quadrangles due to Kantor and Payne in the 1980's. We also show that the dual flock generalized quadrangles are characterised by Property (G) at a line.
Received: 2005-03-21
Revised: 2005-10-17
Published Online: 2007-02-16
Published in Print: 2007-01-26
© Walter de Gruyter 2007
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Articles in the same Issue
- The ovoidal hyperplanes of a dual polar space of rank 4
- Jørgensen's inequality for metric spaces with application to the octonions
- On multiple blocking sets in Galois planes
- On twisted tensor product group embeddings and the spin representation of symplectic groups
- Projective ovoids and generalized quadrangles
- Multiple farthest points on Alexandrov surfaces
- Stiefel—Whitney classes for coherent real analytic sheaves
- On Weddle surfaces and their moduli
- Lower bounds for the first eigenvalue of the p-Laplace operator on compact manifolds with nonnegative Ricci curvature
