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arXiv 1306.3026math.NT
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P^d稠密子集的角点

Corners in dense subsets of P^d

Ákos Magyar, Tatchai Titichetrakun

摘要:

设$\PP^d$是素数集的$d$ -重直积。证明了如果$A$是正相对上密度的$\PP^d$的子集,则$A$包含无穷多个“角点”,即$\{x,x+te_1,...,x+te_d\}$形式的集合,其中x是整数点,e_1,. e_d是d维欧几里得空间的标准基向量。我们的论点是基于证明一个删除引理的加权一致超图,其中的重量系统是定义在一个两两线性无关家庭的线性型。

英文摘要:

Let $\PP^d$ be the $d$-fold direct product of the set of primes. We prove that if $A$ is a subset of $\PP^d$ of positive relative upper density then $A$ contains infinitely many "corners", that is sets of the form $\{x,x+te_1,...,x+te_d\}$ where x is an integer point and e_1,...,e_d are the standard basis vectors of the d-dimensional Euclidean space. Our argument is based on proving a removal lemma for weighted uniform hypergraphs, where the weight system is defined in terms of a pairwise linearly independent family of linear forms.

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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