A note on centre-by-finite-exponent varieties of groups
A note on centre-by-finite-exponent varieties of groups
We refer the reader to Hanna Neumann [7] for notation and other undefined terms. Let and denote the varieties of groups defined by the laws (xy) n = x n y n , [x, y] n =1 and [x, y n ]respectively, where n is an integer. (n) -groups were …