C. Cassidy et C. Lajoie, GENUS OF NILPOTENT GROUPS OF HIRSCH LENGTH 6, Mathematical proceedings of the Cambridge Philosophical Society, 117, 1995, pp. 431-438
In this paper, we characterize the genus of an arbitrary torsion-free
finitely generated nilpotent group of class two and of Hirsch length s
ix by means of a finite number of arithmetical invariants. An algorith
m which permits the enumeration of all possible genera that can occur
under the conditions above is also given.