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arXiv 2210.09680math.NT
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关于加法补函数$SX$

On function $SX$ of additive complements

Jin-Hui Fang, Csaba Sándor

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摘要：

两个非负整数集合$A,B$称为\emph{additive complements}，如果所有足够大的整数都可以表示为$A$和$B$中两个元素的和。如果每个非负整数都可以唯一地表示为来自$A$和$B$的两个元素之和，则我们进一步称之为$A,B$ \emph{perfect additive complements}。令$A(x)$为$A$的计数函数。在本文中，我们专注于功能$SX$，其中$SX=\limsup_{x\rightarrow\infty}\frac{\max\{A(x),B(x)\}}{\sqrt{x}}$是由埃尔德斯和弗洛伊德在1984年提出的。作为主要结果，我们确定了完全可加补的$SX$的值，并进一步确定了下确界。我们也给出了加法补数的$SX$的绝对下界。

英文摘要：

Two sets $A,B$ of nonnegative integers are called \emph{additive complements}, if all sufficiently large integers can be expressed as the sum of two elements from $A$ and $B$. We further call $A,B$ \emph{perfect additive complements} if every nonnegative integer can be uniquely expressed as the sum of two elements from $A$ and $B$. Let $A(x)$ be the counting function of $A$. In this paper, we focus on the function $SX$, where $SX=\limsup_{x\rightarrow\infty}\frac{\max\{A(x),B(x)\}}{\sqrt{x}}$ was introduced by Erdős and Freud in 1984. As a main result, we determine the value of $SX$ for perfect additive complements and further fix the infimum. We also give the absolute lower bound of $SX$ for additive complements.

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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