摘要
We consider groups G such that NG(H)/HCG(H) is cyclic for all H ≤ G. More specifically, we characterise locally nilpotent and supersoluble groups with this property.
We consider groups G such that NG(H)/HCG(H) is cyclic for all H ≤ G. More specifically, we characterise locally nilpotent and supersoluble groups with this property.