Geodesic
The Hypercentre and the n-Centre of the Unit Group of an Integral Group Ring
Canadian journal of mathematics, Tome 50 (1998) no. 2, pp. 401-411

Voir la notice de l'article provenant de la source Cambridge University Press

In this paper, we first show that the central height of the unit group of the integral group ring of a periodic group is at most 2. We then give a complete characterization of the $n$ -centre of that unit group. The $n$ -centre of the unit group is either the centre or the second centre (for $n\,\ge \,2$ ).
DOI : 10.4153/CJM-1998-021-2
Mots-clés : 16U60, 20C05 
Li, Yuanlin. The Hypercentre and the n-Centre of the Unit Group of an Integral Group Ring. Canadian journal of mathematics, Tome 50 (1998) no. 2, pp. 401-411. doi: 10.4153/CJM-1998-021-2
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