Free groups in normal subgroups of the multiplicative group of a division ring

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A Note on the Multiplicative Group of a Division Ring

Let K be a noncommutative division ring with center Z and multiplicative group K*. Hua [2; 3] proved that (i) K*/Z* is a group without center, and (ii) K* is not solvable. A generalization (Theorem 1) will be given here which contains as a special case (Theorem 2) the fact that K*/Z* has no Abelian normal subgroups. This latter theorem obviously contains both (i) and (ii). As a further corollar...

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ژورنال

عنوان ژورنال: Journal of Algebra

سال: 2015

ISSN: 0021-8693

DOI: 10.1016/j.jalgebra.2015.05.020