pith. sign in

arxiv: 1410.3423 · v1 · pith:OO4IHXRCnew · submitted 2014-10-09 · 🧮 math.CO · math.GR

Point-primitive generalised hexagons and octagons

classification 🧮 math.CO math.GR
keywords generalisedhexagonsmathsfgroupgroupsoctagonoctagonstype
0
0 comments X
read the original abstract

In 2008, Schneider and Van Maldeghem proved that if a group acts flag-transitively, point-primitively, and line-primitively on a generalised hexagon or generalised octagon, then it is an almost simple group of Lie type. We show that point-primitivity is sufficient for the same conclusion, regardless of the action on lines or flags. This result narrows the search for generalised hexagons or octagons with point- or line-primitive collineation groups beyond the classical examples, namely the two generalised hexagons and one generalised octagon admitting the Lie type groups $\mathsf{G}_2(q)$, $\,^3\mathsf{D}_4(q)$, and $\,^2\mathsf{F}_4(q)$, respectively.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.