On polarised class groups of orders in quartic {CM}-fields
On polarised class groups of orders in quartic {CM}-fields
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关于四次 {CM} 域中阶的极化类群
DOI:
10.4310/mrl.2017.v24.n2.a1
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发表时间:
2013
影响因子:
1
通讯作者:
Marco Streng
中科院分区:
文献类型:
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作者:
G. Bisson;Marco Streng
We give an explicit necessary condition for pairs of orders in a quartic CM-field to have the same polarised class group. This generalises a simpler result for imaginary quadratic fields. We give an application of our results to computing endomorphism rings of abelian surfaces over finite fields, and we use our results to extend a completeness result of Murabayashi and Umegaki to a list of abelian surfaces over the rationals with complex multiplication by arbitrary orders.
影响因子:
--
作者:
Bouyer F
通讯作者:
Bouyer F