arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1705.02166math.CO
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欧氏拉姆齐理论中的直线

Lines in Euclidean Ramsey theory

David Conlon, Jacob Fox

摘要:

设$\ell_m$是一列$m$点在一条直线上,连续点的距离为1。对于每个自然数$n$,我们证明了对于任何$m \geq 2^{cn}$,都存在一个不含$\ell_2$的红色拷贝和$\ell_m$的蓝色拷贝的$\mathbb{E}^n$的红/蓝着色.这最好在指数中达到常数$c$。它还回答了1973年Erdés,Graham,Montgomery,Rothschild,Spencer和Straus提出的一个问题。他们问,对于每个自然数$n$,是否有一个集合$K \subset \mathbb{E}^1$和一个红色/蓝色的$\mathbb{E}^n$,其中不包含$\ell_2$的红色副本和$K$的蓝色副本。

英文摘要:

Let $\ell_m$ be a sequence of $m$ points on a line with consecutive points of distance one. For every natural number $n$, we prove the existence of a red/blue-coloring of $\mathbb{E}^n$ containing no red copy of $\ell_2$ and no blue copy of $\ell_m$ for any $m \geq 2^{cn}$. This is best possible up to the constant $c$ in the exponent. It also answers a question of Erdős, Graham, Montgomery, Rothschild, Spencer and Straus from 1973. They asked if, for every natural number $n$, there is a set $K \subset \mathbb{E}^1$ and a red/blue-coloring of $\mathbb{E}^n$ containing no red copy of $\ell_2$ and no blue copy of $K$.

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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