arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1001.1980math.CO
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F_p中的一个显式关联定理

An explicit incidence theorem in F_p

Harald Andres Helfgott, Misha Rudnev

摘要:

设$P = A\times A \subset \mathbb{F}_p \times \mathbb{F}_p$,$p$为素数.假设$P= A\times A$具有$n$元素$n<p$。将$P$视为$\mathbb{F}_p$上平面中的一组点。我们表明,在$P$的点对确定$\geq c n^{1 + {1/267}}$线,其中$c$是一个绝对常数。我们由此导出一个关联定理:$n$点集和$n$线集在$\F_p$上的投影平面($n<\sqrt{p}$)上的关联数以$C n^{{3/2}-{1/10678}}$为界,其中$C$是一个绝对常数。

英文摘要:

Let $P = A\times A \subset \mathbb{F}_p \times \mathbb{F}_p$, $p$ a prime. Assume that $P= A\times A$ has $n$ elements, $n<p$. See $P$ as a set of points in the plane over $\mathbb{F}_p$. We show that the pairs of points in $P$ determine $\geq c n^{1 + {1/267}}$ lines, where $c$ is an absolute constant. We derive from this an incidence theorem: the number of incidences between a set of $n$ points and a set of $n$ lines in the projective plane over $\F_p$ ($n<\sqrt{p}$) is bounded by $C n^{{3/2}-{1/10678}}$, where $C$ is an absolute constant.

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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