On some exponential sums involving Maass forms over arithmetic progressions
On some exponential sums involving Maass forms over arithmetic progressions
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DOI:
10.1016/j.jnt.2015.08.010
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发表时间:
2016-03
影响因子:
0.7
通讯作者:
Xiao-Hui Yan
中科院分区:
文献类型:
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作者:
Xiao-Hui Yan
Let g (z) be a Maass cusp form for SL (2, Z), and let λ g (n) be the n-th Fourier coefficient of g (z). In this paper we investigate the nonlinear exponential sum∑ n∼ X n≡ l mod q λ g (n) e (α n β) twisted by Fourier coefficient over the arithmetic progression. We prove an asymptotic formula when β= 1/2 and α is close to±2 k q, k∈ Z+.