Extensions of characters of a discrete, torsion-free, nilpotent group to characters of some of its supergroups in its Mal’tsev completion are examined. Some sufficient conditions, as well as some necessary conditions, for extensibility are provided. In particular, the situation for nilpotent groups of class 2 is discussed.
Print ISSN: 1433-5883
Volume: 8, 09/2005
Seiten: 635 - 643