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math.DG2018
A simplified categorical approach to several Galois theories
David Blázquez-Sanz, Carlos A. Marín Arango, Juan Felipe Ruiz Castrillon
We discuss the concept of Galois structure and Galois epimorphism in a general setting. Namely, a Galois structure for an epimorphism in some category ${\mathcal C…
math.DG2016
Infinitesimally homogeneous manifolds with prescribed structure groups
Carlos Alberto Marín Arango, David Blázquez-Sanz
We explore the class of triples (M, nabla, P) where M is a manifold, nabla is an affine connection in M and P is a G-structure in M. Inside this class there are infinitesimally hom…