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... semidirect product of a normal subgroup $N$
and some subgroup $T$. Let $I^n(G)$, $n\ge 1$, denote the powers of the
augmentation ideal $I(G)$ of the group ring $\Z(G)$. Using homological methods
the groups $Q_n(G,H) = I^{n-1}(G)I(H)/I^{n}(G)I(H)$, $H=G,N,T$, are
functorially expressed in terms of enveloping algebras of certain Lie rings
associated with $N$ and $T$, in the following cases: for $n\...

http://arxivmath.livejournal.com/2482593.html
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Published: 2 years ago (Wed, 04 Jul 2007 11:22:36 PDT); 1112 bytes
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