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arXiv 2408.09480math.NT
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某些eta-商的傅里叶系数公式及其作为Eisenstein级数的展开

A formula for Fourier coefficients of certain eta-quotients and their expansions as Eisenstein series

Xiao-Jie Zhu

AI总结:

本文给出了113个整权eta-商的傅里叶系数统一闭式公式,并证明其可展开为标准Eisenstein级数的线性组合。

摘要:

我们给出了113个整权全纯eta-商的列表(其中66个是本原的),并为其傅里叶系数c(l)提供了统一的闭式公式,其中l≡1 mod m,m为某个固定的24的因子。证明涉及Wohlfahrt对Hecke算子的推广以及一般乘子系统的模形式空间的维数公式。我们还提供了这些eta-商作为标准Eisenstein级数的线性组合的展开。

英文摘要:

We give a list of $113$ holomorphic eta-quotients of integral weight ($66$ of which are primitive) and provide a uniform closed formula for their Fourier coefficients $c(l)$ where $l\equiv1\bmod{m}$ with some fixed $m\mid24$. The proof involves Wohlfahrt's extension of Hecke operators and a dimension formula for spaces of modular forms of general multiplier system. We further provide the expansions of these eta-quotients as linear combinations of standard Eisenstein series.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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