ABSTRACT
In this chapter we establish the fundamental results on regulating subgroups and regulators due to Lady [Lad74] and Burkhardt [Bur84]. A number of results are valid for Butler groups (of finite rank) and are proved in this generality.
In this chapter we establish the fundamental results on regulating subgroups and regulators due to Lady [Lad74] and Burkhardt [Bur84]. A number of results are valid for Butler groups (of finite rank) and are proved in this generality.