Geodesic
Automorphisms and Derivations of Skew Polynomial Rings
Canadian mathematical bulletin, Tome 35 (1992) no. 1, pp. 126-132

Voir la notice de l'article provenant de la source Cambridge University Press

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].
DOI : 10.4153/CMB-1992-018-6
Mots-clés : 16A05. 
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
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