%0 Journal Article
%T On Baer Invariants of Pairs of Groups
%A Zohreh Vasagh
%A Hanieh Mirebrahimi
%A Behrooz Mashayekhy
%J Mathematics
%D 2011
%I arXiv
%X In this paper, we use the theory of simplicial groups to develop the Schur multiplier of a pair of groups $(G,N)$ to the Baer invariant of it, $\mathcal{V}M(G,N)$, with respect to an arbitrary variety $\mathcal{V}$. Moreover, we present among other things some behaviors of Baer invariants of a pair of groups with respect to the free product and the direct limit. Finally we prove that the nilpotent multiplier of a pair of groups does commute with the free product of finite groups of mutually coprime orders.
%U http://arxiv.org/abs/1106.1278v1