Mathematics – Number Theory
Scientific paper
2011-08-03
Mathematics
Number Theory
8 pages, to appear in PAMS
Scientific paper
In this note, we deduce an asymptotic formula for even power moments of Kloosterman sums based on the important work of N. M. Katz on Kloosterman sheaves. In a similar manner, we can also obtain an upper bound for odd power moments. Moreover, we shall give an asymptotic formula for odd power moments of absolute Kloosterman sums. Consequently, we find that there are infinitely many $a\bmod p$ such that $S(a,1;p)\gtrless0$ as $p\rightarrow+\infty.$
Xi Ping
Yi Yuan
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