Some observations on the arithmetic of Eisenstein series for the modular group SL(2, \Bbb Z)

Some observations on the arithmetic of Eisenstein series for the modular group SL(2, \Bbb Z)
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关于模群 SL(2, Bbb Z) 的爱森斯坦级数算术的一些观察

DOI:
10.1007/pl00000465
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发表时间:
2001
影响因子:
0.6
通讯作者:
E. Gekeler
E. Gekeler
中科院分区:
数学4区
文献类型:
--
作者:
E. Gekeler

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抽象。对于偶数 $k\geqq4$,让 $\varphi_k(X)$是对模群SL的爱森斯坦级数Ek的非椭圆零点的j-不变量进行编码的可分有理多项式 $(2,{Bbb Z})$。我们证明了Kummer型同余性质, $\varphi_k$和,基于广泛的计算,对伽罗瓦群,判别式和零的分布进行观察。 $\varphi_k(X)$.
Abstract. For even integers $k\geqq4$, let $\varphi_k(X)$ be the separable rational polynomial that encodes the j-invariants of non-elliptic zeroes of the Eisenstein series Ek for the modular group SL $(2,{Bbb Z})$. We prove Kummer-type congruence properties for the $\varphi_k$ and, based on extensive calculations, make observations about the Galois group, the discriminant, and the distribution of zeroes of $\varphi_k(X)$.