The Quarterly Journal of Mathematics Advance Access originally published online on July 18, 2006
The Quarterly Journal of Mathematics 2007 58(1):127-135; doi:10.1093/qmath/hal012
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NORMALIZERS OF NILPOTENT SUBGROUPS OF DIVISION RINGS

School of Mathematical Sciences, Queen Mary College, University of London, Mile End Road, London E1 4NS
E-mail: b.a.f.wehrfritz{at}qmul.ac.uk
Received 27 March 2006;
revised 6 June 2006
| Abstract |
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Let D be an arbitrary division ring and G a nilpotent subgroup of the multiplicative group D* of D of class at most 2 such that D is generated as a division ring by G and the centralizer in D of G. The normalizer of G in D* is computed precisely, which extends a theorem of M. Shirvani from finite-dimensional division algebras to arbitrary division rings.