%0 Journal Article
%T Moduli of ¨¦tale subalgebras in an Azumaya algebra
%A Daniel Krashen
%J Mathematics
%D 2004
%I arXiv
%X Let $A$ be a sheaf of Azumaya algebras over a Noetherian base $S$. In this paper we describe using generalized Severi-Brauer varieties, a quasi-projective moduli space parametrizing sheaves of \`etale subalgebras of $A$. In the case that $S$ is the spectrum of a field, we study the geometry of this moduli space, and show that in certain cases it is a rational variety.
%U http://arxiv.org/abs/math/0411529v1