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Induction and structure theorems for Grothendieck and Witt rings of orthogonal representations of finite groups
The Grothendieck-and Witt-ring of orthogonal representations of a finite group is defined and studied.The main application (only indicated) is the reduction of the computation of Wall's various L-groups for a finite group n to those subgroups of n, which are a semidirect product of a cyclic group y of odd …