Finite groups with few self-normalizing subgroups
We describe finite groups which contain just one conjugate class of self-normalizing subgroups.
(p ≥ 5) can be characterized by its order components
Let G be a finite group, and (p ≥ 3). It is proved that G ≅ M if G and M have the same order components.
A characterization theorem for sporadic simple groups.
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