On Nilpotent Multipliers of Some Verbal Products of Groups (1012.1742v1)

Abstract: The paper is devoted to finding a homomorphic image for the $c$-nilpotent multiplier of the verbal product of a family of groups with respect to a variety ${\mathcal V}$ when ${\mathcal V} \subseteq {\mathcal N}{c}$ or ${\mathcal N}{c}\subseteq {\mathcal V}$. Also a structure of the $c$-nilpotent multiplier of a special case of the verbal product, the nilpotent product, of cyclic groups is given. In fact, we present an explicit formula for the $c$-nilpotent multiplier of the $n$th nilpotent product of the group $G= {\bf {Z}}\stackrel{n}{}...\stackrel{n}{}{\bf {Z}}\stackrel{n}{} {\bf {Z}}_{r_1}\stackrel{n}{}...\stackrel{n}{*}{\bf{Z}}{r_t}$, where $r{i+1}$ divides $r_i$ for all $i$, $1 \leq i \leq t-1$, and $(p,r_1)=1$ for any prime $p$ less than or equal to $n+c$, for all positive integers $n$, $c$.