Group theory forms a cornerstone of modern algebra, providing a structured framework for analysing symmetries in mathematics, physics and beyond. A group is a set coupled with an operation that ...

We consider the class of all groups whose non-normal subgroups are FC-groups. In particular, it will be proved that if such a group is soluble-by-fmite, then it is a locally FC-group and its ...

We present explicit upper bounds for the number and size of conjugacy classes in finite Chevalley groups and their variations. These results have been used by many authors to study zeta functions ...