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Ovoids and monomial ovals

โœ Scribed by David G. Glynn; Christine M. O'Keefe; Tim Penttila; Cheryl E. Praeger


Publisher
Springer
Year
1996
Tongue
English
Weight
904 KB
Volume
59
Category
Article
ISSN
0046-5755

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โœฆ Synopsis


This paper is a contribution to the classification of ovoids. We show, under some rather technical assumptions, that if an ovoid of PG(3, q) has a pencil of monomial ovals, then it is either an elliptic quadric or a Tits ovoid. Further, we show that if an ovoid of PG(3, q) has a bundle of translation ovals, again under some extra assumptions, then the ovoid is an elliptic quadric or a Tits ovoid.


๐Ÿ“œ SIMILAR VOLUMES


Ovals in Translation Hyperovals and Ovoi
โœ Christine M. O'Keefe; Tim Penttila ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 399 KB

Let แป be an ovoid of PG(3 , q ) , q even , such that each secant plane section is an oval contained in a translation hyperoval . Then แป is shown to be either an elliptic quadric or a Tits ovoid .

On semi ovals and semi ovoids
โœ J. A. Thas ๐Ÿ“‚ Article ๐Ÿ“… 1974 ๐Ÿ› Springer ๐ŸŒ English โš– 112 KB
Monomial Flocks and Herds Containing a M
โœ Tim Penttila; L Storme ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 367 KB

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 1ร‚2 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).

ฮฑ-Flocks with Oval Herds and Monomial Hy
โœ W.E. Cherowitzo; L. Storme ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 337 KB

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

Flocks and ovals
โœ W. Cherowitzo; T. Penttila; I. Pinneri; G. F. Royle ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Springer ๐ŸŒ English โš– 787 KB

An infinite family of q-clans, called the Subiaco q-clans, is constructed for q = 2 ~. Associated with these q-clans are flocks of quadratic cones, elation generalized quadrangles of order (q2, q), ovals of PG(2, q) and translation planes of order q2 with kernel GF(q). It is also shown that a q-clan