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arxiv: 1704.07608 · v2 · pith:QY5PH5QGnew · submitted 2017-04-25 · 🧮 math.AG · math.NT

Inverse Galois problem for ordinary curves

classification 🧮 math.AG math.NT
keywords galoiscoverscurvesinverseordinaryproblemlineprojective
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We consider the inverse Galois problem over function fields of positive characteristic p, for example, the inverse Galois problem over the projective line. We describe a method to construct certain Galois covers of the projective line and other curves, which are ordinary in the sense that their Jacobian has maximal p-torsion. We do this by constructing Galois covers of ordinary semi-stable curves, and then deforming them into smooth Galois covers.

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