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arXiv 1605.01469math.COmath.DS
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$\mathbb{N}$中的单色和与乘积

Monochromatic sums and products in $\mathbb{N}$

Joel Moreira

摘要:

拉姆齐理论中的一个老问题是,任何自然数的有限着色是否允许单色对$\{x+y,xy\}$。我们肯定地回答这个问题,在强烈的意义上表现出一个大的新类的非线性模式,可以发现在一个单一的细胞的任何有限分区的$\mathbb{N}$。我们的证明涉及到一个对应的原则,将问题转化为语言的拓扑动力学。作为我们的主要定理的推论,我们得到了新类型的方程,如$x^2-y^2=z$和$x^2+2y^2-3z^2=w$的分割正则性。

英文摘要:

An old question in Ramsey theory asks whether any finite coloring of the natural numbers admits a monochromatic pair $\{x+y,xy\}$. We answer this question affirmatively in a strong sense by exhibiting a large new class of non-linear patterns which can be found in a single cell of any finite partition of $\mathbb{N}$. Our proof involves a correspondence principle which transfers the problem into the language of topological dynamics. As a corollary of our main theorem we obtain partition regularity for new types of equations, such as $x^2-y^2=z$ and $x^2+2y^2-3z^2=w$.

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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