Given a separable algebraic field extension L/K we can construct a Galois cover F such that F contains L and is a Galois extension of K. We will discuss generalising this idea to finite étale morphisms of schemes, and examine the assumptions required in doing this. We will then consider going even further to difference algebraic geometry.
Little to no knowledge of algebraic geometry will be assumed.
We will have tea at 4pm in the common room (5th floor of Huxley building).