Subextensions for a permutation PSL(2,q)-module
Group Theory
2013-09-06 v1 K-Theory and Homology
Abstract
Using cohomological methods, we prove the existence of a subgroup isomorphic to SL(2,q), q = -1 (mod 4), in the permutation module for PSL(2,q) in characteristic 2 that arises from the action on the projective line. A similar problem for q = 1 (mod 4) is reduced to the determination of certain first cohomology groups.
Cite
@article{arxiv.1305.1431,
title = {Subextensions for a permutation PSL(2,q)-module},
author = {Andrei Zavarnitsine},
journal= {arXiv preprint arXiv:1305.1431},
year = {2013}
}