๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Flocks and ovals

โœ Scribed by W. Cherowitzo; T. Penttila; I. Pinneri; G. F. Royle


Publisher
Springer
Year
1996
Tongue
English
Weight
787 KB
Volume
60
Category
Article
ISSN
0046-5755

No coin nor oath required. For personal study only.

โœฆ Synopsis


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, for q = 2 ~, is equivalent to a certain configuration of q + 1 ovals of PG(2, q), called a herd.


๐Ÿ“œ SIMILAR VOLUMES


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

Automorphism groups of flocks of oval co
โœ Vikram Jha; Norman L. Johnson ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Springer ๐ŸŒ English โš– 708 KB

This article gives a complete classification of even order flocks of oval cones that admit linear doubly transitive automorphism groups. The main theorem shows that the only possible even order examples are the linear flocks, the translation oval flocks of Thas and the Betten-Fisher-Thas-Walker floc

Ovoids and monomial ovals
โœ David G. Glynn; Christine M. O'Keefe; Tim Penttila; Cheryl E. Praeger ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Springer ๐ŸŒ English โš– 904 KB

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 translatio

Flocks and the chlorine standard of puri
โœ Priestman, Howard ๐Ÿ“‚ Article ๐Ÿ“… 1913 ๐Ÿ› Wiley (John Wiley & Sons) โš– 264 KB

## __ - A. Miliillgs ..... j 14.9 14.2 1%. Unrk inillinps , 125'0 3l.2 BCOUI'Cd .. 170 '22.4 ECUllrillg . . i 17.0 10.1 C. Dwk niillings, : S. Tlrrend mil-, ings nfter Tho following nnnlysrs niny LIC of interest :- ## Alfilling jlvcks. .

A Result on Spreads of the Generalized Q
โœ J.A. Thas ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 114 KB

If F is a flock of the quadratic cone K of PG(3, q), q even, then the corresponding generalized quadrangle S(F) of order (q 2 , q) has subquadrangles T 2 (O), with O an oval, of order q. We prove in a geometrical way that any such T 2 (O) has spreads S consisting of an element y โˆˆ O and the q 2 line