Subgroup Theorems for the Baer-invariant of Groups

Details Subgroup Theorems for the Baer-invariant of Groups Subgroup Theorems for the Baer-invariant of Groups

2011-04-03

arxiv.org/abs/1104.0398v1

Journal of Algebra, 206 (1998) 17-32

Mathematics

Group Theory

25 pages

Scientific paper

M.R.Jones and J.Wiegold in [3] have shown that if $G$ is a finite group with a subgroup $H$ of finite index $n$, then the $n$-th power of Schur multiplier of $G$, $M(G)^n$, is isomorphic to a subgroup of $M(H)$. In this paper we prove a similar result for the centre by centre by $w$ variety of groups, where $w$ is any outer commutator word. Then using a result of M.R.R.Moghaddam [6], we will be able to deduce a result of Schur's type (see [4,9]) with respect to the variety of nilpotent groups of class at most $c$ $(c\geq 1)$, when $c+1$ is any prime number or 4.

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