2 papers
math.GR2026
Class-preserving Coleman automorphisms of finite groups with Wreathed Sylow 2-subgroups
Riccardo Aragona
We show that if is a finite group whose Sylow -subgroups are wreathed, then the intersection $\Outc(G) \cap \OutCol(G)$ has odd order, where $\Outc(G)$ and $\OutCol(G)$ deno…
math.GR2025
Class-preserving Coleman Automorphisms of Finite Groups with Semidihedral Sylow 2-Subgroups
Riccardo Aragona
In this paper, we prove that finite groups with semidihedral Sylow 2-subgroup have Class-preserving Coleman outer automorphism group of odd order. As a consequence, these groups sa…