A property equivalent to commutativity for infinite groups
The author generalizes, by a straightforward argument, a result of \textit{J. C. Lennox, A. M. Hassanabadi}, and \textit{J. Wiegold} [ibid. 84, 135-141 (1990; Zbl 0725.20025)], by proving the Theorem: Suppose \(G\) is an infinite nonabelian group. For every integer \(n > 1\) there is an infinite set of pairwise non-permutable \(n\)-sets. \{A few misprints affecting mathematical expressions were noted, but they should not trouble an alert reader\}.
scientific article; zbMATH DE number 94575