Skip to content

Abelian subgroup structure of square complex groups and arithmetic of quaternions

Diego Rattaggi, Guyan Robertson

math.GRarXiv:math/0501122

Abstract

A square complex is a 2-complex formed by gluing squares together. This article is concerned with the fundamental group Γ of certain square complexes of nonpositive curvature, related to quaternion algebras. The abelian subgroup structure of Γ is studied in some detail.

Create a lesson