An effective proof of the hyperelliptic Shafarevich conjecture

preprint2013arXivOpen access

Abstract

Let CC be a hyperelliptic curve of genus g≥1g\geq 1 over a number field KK with good reduction outside a finite set of places SS of KK. We prove that CC has a Weierstrass model over the ring of integers of KK with height effectively bounded only in terms of gg, SS and KK. In particular, we obtain that for any given number field KK, finite set of places SS of KK and integer g≥1g\geq 1 one can in principle determine the set of KK-isomorphism classes of hyperelliptic curves over KK of genus gg with good reduction outside SS.

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