Let *k* be an algebraically closed field of characteristic *p>0* and *G* a finite group. We provide a description of the torsion subgroup *TT(G)* of the finitely generated abelian group *T(G)* of endo-trivial *kG*-modules when *p=2* and *G* has a dihedral Sylow *2*-subgroup *P*. We prove that, in the case... Show more

August 4, 2015

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Endo-trivial modules for finite groups with dihedral Sylow 2-subgroup

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