arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1009.3899math.CO
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一般有限域上的显式关联界

Explicit incidence bounds over general finite fields

Timothy G. F. Jones

摘要:

令$\mathbb{F}_{q}$为$q=p^k$阶的有限域,其中$p$为素数。设$P$和$L$分别是带有$|P|=|L|=n$的$\mathbb{F}_{q} \times \mathbb{F}_{q}$中的点集和线集。我们建立了关联界$I(P,L) \leq γn^{3/2 - 1/12838}$,其中$γ$是一个绝对常数,只要$P$满足成为“反场”的条件。我们定义这意味着$P$在某个坐标轴上的投影与$\mathbb{F}_q$的大子场的相互作用不超过半维。此外,我们给出的例子集满足这些条件的重要情况下$q=p^2$和$q=p^4$。

英文摘要:

Let $\mathbb{F}_{q}$ be a finite field of order $q=p^k$ where $p$ is prime. Let $P$ and $L$ be sets of points and lines respectively in $\mathbb{F}_{q} \times \mathbb{F}_{q}$ with $|P|=|L|=n$. We establish the incidence bound $I(P,L) \leq γn^{3/2 - 1/12838}$, where $γ$ is an absolute constant, so long as $P$ satisfies the conditions of being an `antifield'. We define this to mean that the projection of $P$ onto some coordinate axis has no more than half-dimensional interaction with large subfields of $\mathbb{F}_q$. In addition, we give examples of sets satisfying these conditions in the important cases $q=p^2$ and $q=p^4$.

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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