Cgs( U )
Cgs
returns a canonical generating system of U with respect to the
parent group of U as list of ag words (see More about Ag Groups).
If U.cgs
is bound, this is returned without any further action. If
U.igs
is bound, a copy of this component is normalized, bound to
U.cgs
and returned. If neither U.igs
nor U.cgs
are bound, a
canonical generating system for U is computed using MergedCgs
(see
MergedCgs) and bound to U.cgs
.
GAP 3.4.4