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math.RA2006
A formulation of difference Galois theory
Kiran S. Kedlaya
As a simple corollary of a highly general framework for differential and difference Galois theory introduced by Y. Andre, we formulate a version of the Galois correspondence that a…
math.RA2006
Basis discrepancies for extensions of valued fields
Kiran. S. Kedlaya
Let F be a field complete for a real valuation. It is a standard result in valuation theory that a finite extension of F admits a valuation basis if and only if it is without defec…