English

Groups of Finite Morley Rank with a Pseudoreflection Action

Group Theory 2021-07-27 v1

Abstract

In this work, we give two characterisations of the general linear group as a group GG of finite Morley rank acting on an abelian connected group VV of finite Morley rank definably, faithfully and irreducibly. To be more precise, we prove that if the pseudoreflection rank of GG is equal to the Morley rank of VV, then VV has a vector space structure over an algebraically closed field, GGL(V)G\cong GL(V) and the action is the natural action. The same result holds also under the assumption of Prufer 2-rank of GG being equal to the Morley rank of VV.

Keywords

Cite

@article{arxiv.1112.3739,
  title  = {Groups of Finite Morley Rank with a Pseudoreflection Action},
  author = {Ayse Berkman and Alexandre Borovik},
  journal= {arXiv preprint arXiv:1112.3739},
  year   = {2021}
}