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
Doran CF
中科院分区:
数学3区
文献类型:
--
作者:
Doran CF

文献摘要

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研究了投影空间中Delsarte K3四次超曲面的五种单参数变形相关的超几何函数。我们计算所有的皮卡德-富克斯微分方程;我们用高斯和来计数点并用有限域超几何和来重写;然后我们将每个微分方程与ζ函数的一个因子相匹配,我们把它写成全局函数的形式。这个计算给出了一个完整的,明确的描述这些铅笔在超几何动机方面的动机。
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.