No CrossRef data available.
Published online by Cambridge University Press: 10 August 2023
For a group G and $m\ge 1$, let
$G^m$ denote the subgroup generated by the elements
$g^m$, where g runs through G. The subgroups not of the form
$G^m$ are the nonpower subgroups of G. We classify the groups with at most nine nonpower subgroups.
This work was supported by the National Natural Science Foundation of China (11971391, 12071376).