English

Subgroups of Classical Groups that are Transitive on Subspaces

Group Theory 2020-12-15 v1 Combinatorics

Abstract

For each finite classical group GG, we classify the subgroups of GG which act transitively on a GG-invariant set of subspaces of the natural module, where the subspaces are either totally isotropic or nondegenerate. Our proof uses the classification of the maximal factorisations of almost simple groups. As a first application of these results we classify all point-transitive subgroups of automorphisms of finite thick generalised quadrangles.

Keywords

Cite

@article{arxiv.2012.07213,
  title  = {Subgroups of Classical Groups that are Transitive on Subspaces},
  author = {Michael Giudici and S. P. Glasby and Cheryl E. Praeger},
  journal= {arXiv preprint arXiv:2012.07213},
  year   = {2020}
}

Comments

62 pages, 34 tables

R2 v1 2026-06-23T20:56:20.087Z