More on regular subgroups of the affine group

Abstract

This paper is a new contribution to the study of regular subgroups of the affine group $AG{L}_n(F)$, for any field $F$. In particular we associate to any partition $\lambda \ne (1^{n+1})$ of $n+1$ abelian regular subgroups in such a way that different partitions define non-conjugate subgroups. Moreover, we classify the regular subgroups of certain natural types for $n\le 4$. Our classification is equivalent to the classification of split local algebras of dimension $n+1$ over $F$. Our methods, based on classical results of linear algebra, are computer free.

References in corpus (1)

• Canonical forms for complex matrix congruence and *congruence