On the Derivative of an Eisenstein Series of Weight One
On the Derivative of an Eisenstein Series of Weight One
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关于权重一的爱森斯坦级数的导数
DOI:
10.1155/s1073792899000185
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发表时间:
1999
影响因子:
1
通讯作者:
Tonghai Yang
中科院分区:
文献类型:
--
作者:
S. Kudla;M. Rapoport;Tonghai Yang
In [17], a certain family of Siegel Eisenstein series of genus g and weight (g + 1)/2 was introduced. They have an odd functional equation and hence have a natural zero at their center of symmetry (s = 0). It was suggested that the derivatives at s = 0 of such series, which we will refer to as incoherent Eisenstein series, should have some connection with arithmetical algebraic geometry. Some evidence was provided in the case of genus 2 and weight 3/2. In that case, certain of the Fourier coefficients of the central derivative were shown to involve (parts of) the height pairing of Heegner points on Shimura curves. Additional evidence occurred earlier in the work of Gross and Keating [12], where, implicitly, derivatives of Siegel Eisenstein series on Sp3 of weight 2 arise. Higher dimensional cases are studied in [19] (Sp4, weight 5/2) and [21] (Sp3, weight 2). In the present paper,we consider the simplest possible example of an incoherent Eisenstein series and its central derivative. More precisely, let q > 3 be a prime congruent to 3 modulo 4. There are two types of Eisenstein series of weight 1 associated to the imaginary quadratic field k = Q(√−q). The first is a coherent Eisenstein series. For τ = u+ iv in the upper half-plane and s ∈ C with Re(s) > 1, this series has the form