An explicit formula for the action of a finite group on a commutative ring

Details An explicit formula for the action of a finite group on a commutative ring An explicit formula for the action of a finite group on a commutative ring

2007-07-14

arxiv.org/abs/0707.2167v1

Journal of Pure and Applied Algebra 211 (2007) 43-49

Mathematics

Rings and Algebras

7 pages

Scientific paper

Let G be a group which acts on a commutative ring k. We exhibit an induction
formula which expresses an element x_G with tr_G(x_G)=1 by elements x_P with
tr_P(x_P)=1, where P varies over prime order subgroups of P.

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