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math.AG2007★ 18 cited
Oort groups and lifting problems
Ted Chinburg, Robert Guralnick, David Harbater
Let k be an algebraically closed field of positive characteristic p. We consider which finite groups G have the property that every faithful action of G on a connected smooth proje…
math.AG2007
Polynomials with PSL(2) monodromy
Robert M. Guralnick, Michael E. Zieve
Let K be a field of characteristic p>0, and let q be a power of p. We determine all polynomials f in K[t]\K[t^p] of degree q(q-1)/2 such that the Galois group of f(t)-u over K(u) h…