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arXiv math/0311365math.NTmath.AG
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Q上的半稳定阿贝尔簇

Semistable abelian Varieties over Q

Frank Calegari

摘要:

证明了对N=6和N=10,Q上不存在任何非零半稳定的阿贝尔簇,它们在素数除N之外具有好约化.我们的结果是偶然的GRH判别界的Odlyzko。结合Brumer-Kramer和Schoof的最新结果,这个结果是最好的可能:如果N是平方自由的,存在一个非零的半稳定的阿贝尔簇在Q上,当N不在集合{1,2,3,5,6,7,10,13}中时,在素数外精确地划分N,具有好约化。

英文摘要:

We prove that for N=6 and N=10, there do not exist any non-zero semistable abelian varieties over Q with good reduction outside primes dividing N. Our results are contingent on the GRH discriminant bounds of Odlyzko. Combined with recent results of Brumer--Kramer and of Schoof, this result is best possible: if N is squarefree, there exists a non-zero semistable abelian variety over Q with good reduction outside primes dividing N precisely when N is not in the set {1,2,3,5,6,7,10,13}.

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