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- W2949667504 abstract "It is known that the norm map N_G for a finite group G acting on a ring R is surjective if and only if for every elementary abelian subgroup E of G the norm map N_E for E is surjective. Equivalently, there exists an element x_G in R with N_G(x_G) = 1 if and only for every elementary abelian subgroup E there exists an element x_E in R such that N_E(x_E) = 1. When the ring R is noncommutative, it is an open problem to find an explicit formula for x_G in terms of the elements x_E. In this paper we present a method to solve this problem for an arbitrary group G and an arbitrary group action on a ring.Using this method, we obtain a complete solution of the problem for the quaternion and the dihedral 2-groups,and for a group of order 27. We also show how to reduce the problem to the class of (almost) extraspecial p-groups." @default.
- W2949667504 created "2019-06-27" @default.
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- W2949667504 date "2004-02-09" @default.
- W2949667504 modified "2023-09-24" @default.
- W2949667504 title "Norm formulas for finite groups and induction from elementary abelian subgroups" @default.
- W2949667504 hasPublicationYear "2004" @default.
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