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Soluble normally constrained pro-p-groups

  • Norberto Gavioli EMAIL logo , Valerio Monti and Carlo Maria Scoppola
Published/Copyright: June 18, 2007
Journal of Group Theory
From the journal Volume 10 Issue 3

Abstract

A pro-p-group G is said to be normally constrained (or, equivalently, of obliquity zero) if every open normal subgroup of G is trapped between two consecutive terms of the lower central series of G.

In this paper infinite soluble normally constrained pro-p-groups, for an odd prime p, are shown to be 2-generated. A classification of such groups, up to the isomorphism type of their associated Lie algebra, is provided in the finite coclass case, for p > 3. Moreover, we give an example of an infinite soluble normally constrained pro-p-group whose lattice of open normal subgroups is isomorphic to that of the Nottingham group.

Some general results on the structure of soluble just infinite pro-p-groups are proved on the way.


(Communicated by J. S. Wilson)


Received: 2006-02-17
Revised: 2006-06-20
Published Online: 2007-06-18
Published in Print: 2007-05-23

© Walter de Gruyter

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