The following sections describe functions that compute and return series of subgroups of a given group (see DerivedSeries, LowerCentralSeries, SubnormalSeries, and UpperCentralSeries). The series are returned as lists of subgroups of the group (see More about Groups and Subgroups).
These functions print warnings if the argument is an infinite group, because they may run forever.
GAP 3.4.4