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arXiv 2602.22167math.NT
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特征和的Burgess型界 over $\mathbb{F}_{p^n}$

Burgess-type volume dependent bounds for character sums over $\mathbb{F}_{p^n}$

Ramakrishna Mission Vivekananda Educational and Research Institute(罗摩克里希那传教士维韦卡南达教育研究所)

Aishik Chattopadhyay

AI总结:

本文在有限域$\mathbb{F}_{p^n}$上建立了特征和的Burgess型界,通过体积条件证明了当盒状区域大小达到一定阈值时必然存在非平凡抵消,扩展了Gabdullin在n=2,3时的结果至任意维度。

摘要:

我们建立了有限域$\mathbb{F}_{p^n}$上的短乘法特征和的Burgess型界,基于纯体积条件。我们证明,对于盒状区域$B \subset \mathbb{F}_{p^n}$,当$|B| \ge p^{n(1/4+\varepsilon)}$时,必然存在非平凡抵消,无需对各边长施加下界限制。这消除了先前结果中的坐标-wise限制,并将Gabdullin在n=2,3时的工作扩展到任意维度。证明结合了数论中的几何方法、乘法能量估计以及Katz的特征和界。

英文摘要:

We establish a Burgess-type bound for short multiplicative character sums over finite fields $\mathbb{F}_{p^n}$. Let \[ B=\left\{\sum_{i=1}^{n}x_iω_i: N_i+1\le x_i\le N_i+H_i,1\le i\le n\right\}\subseteq\mathbb{F}_{p^n}, \] where $1\le H_i\le p$ for all $1\le i\le n$, and the side lengths satisfy $H_1\le H_2\le\cdots\le H_n.$ We prove that if the side lengths satisfy certain lower bounds in terms of the two largest side lengths, then a nontrivial cancellation occurs in the character sum over the boxes. This generalizes the work of Gabdullin \cite{GB} in dimensions $n=2,3$ to arbitrary dimension. This also generalizes the character sum estimate of Konyagin \cite{Kon} where each of the side lengths of the boxes are greater than $p^{1/4}$. The proof combines techniques from the geometry of numbers, multiplicative energy estimates, and Katz's bounds for multiplicative character sums.

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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