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OPPOSITE-SIGN KLOOSTERMAN SUM ZETA FUNCTION

Part of: Zeta and $L$-functions: analytic theory Exponential sums and character sums Discontinuous groups and automorphic forms

Published online by Cambridge University Press:  28 January 2016

Eren Mehmet Kıral
Eren Mehmet Kıral*
Affiliation:
Department of Mathematics, Texas A&M University, Mailstop 3368, College Station, TX 77843, U.S.A. email ekiral@tamu.edu
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Abstract

We study the meromorphic continuation and the spectral expansion of the opposite-sign Kloosterman sum zeta function

$$\begin{eqnarray}\displaystyle (2{\it\pi}\sqrt{mn})^{2s-1}\mathop{\sum }_{\ell =1}^{\infty }\frac{S(m,-n,\ell )}{\ell ^{2s}} & & \displaystyle \nonumber\end{eqnarray}$$
for $m,n$ positive integers, to all $s\in \mathbb{C}$. There are poles of the function corresponding to zeros of the Riemann zeta function and the spectral parameters of Maass forms. The analytic properties of this function are rather delicate. It turns out that the spectral expansion of the zeta function converges only in a left half-plane, disjoint from the region of absolute convergence of the Dirichlet series, even though they both are analytic expressions of the same meromorphic function on the entire complex plane.

MSC classification

Primary: 11F66: Langlands $L$-functions; one variable Dirichlet series and functional equations 11F72: Spectral theory; Selberg trace formula 11L05: Gauss and Kloosterman sums; generalizations 11M36: Selberg zeta functions and regularized determinants; applications to spectral theory, Dirichlet series, Eisenstein series, etc. Explicit formulas
Type
Research Article
Information
Mathematika , Volume 62 , Issue 2 , 2016 , pp. 406 - 429
Copyright
Copyright © University College London 2016 

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