Kloosterman层对称积的$L$ -函数的函数方程
Functional Equations of $L$-Functions for Symmetric Products of the Kloosterman Sheaf
摘要:
我们确定(算术)本地monodromy在0和$\infty$的Kloosterman层使用本地傅立叶变换和Laumon的固定相位原理。然后我们计算Kloosterman层的对称乘积的$ε$ -因子。利用Laumon乘积公式,得到了这类对称乘积的$L$ -函数的函数方程,并证明了Evans关于函数方程常数符号的一个猜想.
英文摘要:
We determine the (arithmetic) local monodromy at 0 and at $\infty$ of the Kloosterman sheaf using local Fourier transformations and Laumon's stationary phase principle. We then calculate $ε$-factors for symmetric products of the Kloosterman sheaf. Using Laumon's product formula, we get functional equations of $L$-functions for these symmetric products, and prove a conjecture of Evans on signs of constants of functional equations.
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