Hypergeometric decomposition of symmetric K3 quartic pencils.
Hypergeometric decomposition of symmetric K3 quartic pencils.
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对称 K3 四次铅笔的超几何分解。
DOI:
10.1007/s40687-020-0203-3
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发表时间:
2020
影响因子:
1.2
通讯作者:
Doran CF
中科院分区:
文献类型:
--
作者:
Doran CF
We study the hypergeometric functions associated to five one-parameter deformations of Delsarte K3 quartic hypersurfaces in projective space. We compute all of their Picard–Fuchs differential equations; we count points using Gauss sums and rewrite this in terms of finite-field hypergeometric sums; then we match up each differential equation to a factor of the zeta function, and we write this in terms of globalL-functions. This computation gives a complete, explicit description of the motives for these pencils in terms of hypergeometric motives.