On the central value of symmetric square L-functions

On the central value of symmetric square L-functions
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DOI:
10.1007/s00209-008-0299-4
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发表时间:
2008-01
影响因子:
0.8
通讯作者:
V. Blomer
V. Blomer
中科院分区:
数学2区
文献类型:
--
作者:
V. Blomer

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设Sk(N,χ)是权重k,水平N和特征χ的尖点形式的空间。设L(S,sym2f)为对称平方L-函数,且为Rankin-Selberg平方附加TOF。对于固定k≥2,N素数和实本原χ,给出了L(S,sym2f)中心值的一阶和二阶矩的渐近公式以及Sk(N,χ)在基Sk(N,→∞)上的渐近公式.作为应用,证明了中心值L(1/2,sym2f)的正比例不会消失。
LetSk(N, χ) be the space of cusp forms of weightk, levelNand character χ. ForletL(s, sym2f) be the symmetric squareL-function andbe the Rankin–Selberg square attached tof. For fixedk≥ 2,Nprime, and real primitive χ, asymptotic formulas for the first and second moment of the central value ofL(s, sym2f) andover a basis ofSk(N, χ) are given asN→ ∞. As an application it is shown that a positive proportion of the central valuesL(1/2, sym2f) does not vanish.