Separably closed fields and contractive Ore modules
  We consider valued fields with a distinguished contractive map as valued modules over the Ore ring of difference operators. We prove quantifier elimination for separably closed valued fields with the Frobenius map, in the pure module language augmented with functions yielding components for a p-basis and a chain of subgroups indexed by the valuation group. 
Luc B\'elair and Fran\c{c}oise Point
math.LO math.NT