Título inglés |
Non-commutative separability and group actions. |
Título español |
Separabilidad no conmutativa y acciones de grupo. |
Autor/es |
Alfaro, Ricardo |
Organización |
Dep. Math. Univ. Michigan-Flint, Flint (Michigan), Estados Unidos |
Revista |
0214-1493 |
Publicación |
1992, 36 (2A): 359-367, 11 Ref. |
Tipo de documento |
articulo |
Idioma |
Inglés |
Resumen inglés |
We give conditions for the skew group ring S * G to be strongly separable and H-separable over the ring S. In particular we show that the H-separability is equivalent to S being central Galois extension. We also look into the H-separability of the ring S over the fixed subring R under a faithful action of a group G. We show that such a chain: S * G H-separable over S and S H-separable over R cannot occur, and that the centralizer of R in S is an Azumaya algebra in the presence of a central element of trace one. |
Código MathReviews |
MR1209807 |
Acceso al artículo completo |