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Proceedings of the American Mathematical Society

ISSN 1088-6826(online) ISSN 0002-9939(print)



High order moments of character sums

Authors: Todd Cochrane and Zhiyong Zheng
Journal: Proc. Amer. Math. Soc. 126 (1998), 951-956
MSC (1991): Primary 11L40, 11D79
MathSciNet review: 1473660
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Abstract: We establish the upper bound

\begin{equation*}\frac{1}{p-1} \sum _{\chi \ne \chi _{o}}\big | \sum _{x=a+1}^{a+B} \chi (x) \big |^{2k} \ll _{\epsilon ,k} p^{k-1 +\epsilon } + B^{k} p^{\epsilon }, \end{equation*}

with $p$ a prime and $k$ any positive integer, the sum being over all nonprincipal multiplicative characters $\pmod p$.

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Additional Information

Todd Cochrane
Affiliation: Department of Mathematics, Kansas State University, Manhattan, Kansas 66506

Zhiyong Zheng
Affiliation: Department of Mathematics, Zhongshan University, Guangzhou 510275, People’s Republic of China

Keywords: Character sums, congruences
Received by editor(s): February 25, 1996
Communicated by: Dennis A. Hejhal
Article copyright: © Copyright 1998 American Mathematical Society