Completely outer groups of automorphisms acting on $R/J(R)$
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- by J. Osterburg PDF
- Proc. Amer. Math. Soc. 46 (1974), 187-190 Request permission
Abstract:
Let $R$ be a ring with unit, $J(R)$ its Jacobson radical, and assume $R/J(R)$ Artinian. Let $G$ be a finite group of automorphisms of $R$ that induces a completely outer group on $R/J(R)$. Then $R$ is $G$-Galois over the fixed ring, $S$, if $R$ is projective over the usual crossed product, $\Delta$, or, if the order of $G$ is invertible in $R$, or if $R$ is Artinian.References
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Additional Information
- © Copyright 1974 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 46 (1974), 187-190
- MSC: Primary 16A74
- DOI: https://doi.org/10.1090/S0002-9939-1974-0354788-3
- MathSciNet review: 0354788