Notes on cotorsion dimension of Hopf--Galois extensions
نویسندگان
چکیده
منابع مشابه
On Generalized Hopf Galois Extensions
is an isomorphism, which can be interpreted as the correct algebraic formulation of the condition that the G-action of X should be free, and transitive on the fibers of the map X → Y . In many applications surjectivity of the Galois map β, which, in the commutative case, means freeness of the action of G, is obvious, or at least easy to prove (it is sufficient to find 1 ⊗ h in the image for eac...
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ژورنال
عنوان ژورنال: TURKISH JOURNAL OF MATHEMATICS
سال: 2016
ISSN: 1300-0098,1303-6149
DOI: 10.3906/mat-1408-59