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math.NT2002
Torsion of Drinfeld modules and equicharacteristic unimodular Galois covers
Gunther Cornelissen, Marina Tripolitaki
We prove that the groups PSL(r,q^d) can be realized F_q(T)-regularly as Galois groups over the purely transcendental field F_q(T)(t_1,...,t_{r-1}) if r is even and r/2 is coprime t…
math.AG2002
Mumford curves with maximal automorphism group II: Lame type groups in genus 5-8
Gunther Cornelissen, Fumiharu Kato
A Mumford curve of genus g=5,6,7 or 8 over a non-archimedean field of characteristic p (such that if p=0, the residue field characteristic exceeds 5) has at most 12(g-1) automorphi…
math.AG2002
Mumford curves with maximal automorphism group
Gunther Cornelissen, Fumiharu Kato
The maximal number of automorphisms of a Mumford curve over a non-archimedean valued field of positive characteristic is known. In this note, the unique family of curves that attai…