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arXiv 1409.3797math.NT
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复合模的Character和与混合次凸性

Character sums of composite moduli and hybrid subconvexity

Roman Holowinsky, Ritabrata Munshi, Zhi Qi

摘要:

设$M=M_1 M_2 M_3$是三个不同素数的乘积,并且设$χ=χ_1 χ_2 χ_3$是模$M$的狄利克雷特征标,使得每个$χ_i$是$i=1,2,3$的模$M_i$的本原特征标。本文给出了一种$δ$ -符号方法,用于获得$\sum_{n=1}^\infty χ(n) W(n/N)$形式的光滑特征和中的非平凡消去,其中$N$的大小约为$\sqrt M$,$W$是$(0, \infty)$上的光滑紧支撑权函数.作为推论,我们建立了相应的Dirichlet $L$ -函数的混合次凸性界。

英文摘要:

Let $M=M_1 M_2 M_3$ be the product of three distinct primes and let $χ=χ_1 χ_2 χ_3$ be a Dirichlet character of modulus $M$ such that each $χ_i$ is a primitive character modulo $M_i$ for $i=1,2,3$. In this paper, we provide a $δ$-symbol method for obtaining non-trivial cancellation in smooth character sums of the form $\sum_{n=1}^\infty χ(n) W(n/N)$, with $N$ roughly of size $\sqrt M$ and $W$ a smooth compactly supported weight function on $(0, \infty)$. As a corollary, we establish hybrid subconvexity bounds for the associated Dirichlet $L$-function.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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