Automorphisms and Derivations of Skew Polynomial Rings
Canadian mathematical bulletin, Tome 35 (1992) no. 1, pp. 126-132
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For a prime ring R and σ ∊ Aut(R), we determine the group of Rstabilizing automorphisms of the skew polynomial ring R[x; σ]. In the case where R is simple, we characterize the X-inner automorphisms of R[x; σ]. We also provide necessary and sufficient conditions for a σ -commuting derivation of a prime ring R to extend to a derivation of R[x; σ].
Rosen, Mary P. Automorphisms and Derivations of Skew Polynomial Rings. Canadian mathematical bulletin, Tome 35 (1992) no. 1, pp. 126-132. doi: 10.4153/CMB-1992-018-6
@article{10_4153_CMB_1992_018_6,
author = {Rosen, Mary P.},
title = {Automorphisms and {Derivations} of {Skew} {Polynomial} {Rings}},
journal = {Canadian mathematical bulletin},
pages = {126--132},
year = {1992},
volume = {35},
number = {1},
doi = {10.4153/CMB-1992-018-6},
url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1992-018-6/}
}
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