A simplified categorical approach to several Galois theories
arXiv: Differential Geometry(2018)
Abstract
We discuss the concept of Galois structure and Galois epimorphism in a general setting. Namely, a Galois structure for an epimorphism π M→ B in some category 𝒞 is the action of a group object that gives to M the structure of principal homogeneous space in the relative category 𝒞_B.
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Key words
simplified categorical approach,theories
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