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arXiv 2006.09541math.NT
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可表示为线性递归序列差的整数

Integers representable as differences of linear recurrence sequences

Daodao Yang

摘要:

设$\{U_n\}_{n \geqslant 0}$和$\{G_m\}_{m \geqslant 0}$是定义在整数上的两个线性递归序列。当$x$趋于无穷大时,我们建立了$[-x, x]$范围内的整数个数$c$的渐近公式,它可以表示为差$ U_n - G_m$.特别地,这样的整数的密度是$0$。

英文摘要:

Let $\{U_n\}_{n \geqslant 0}$ and $\{G_m\}_{m \geqslant 0}$ be two linear recurrence sequences defined over the integers. We establish an asymptotic formula for the number of integers $c$ in the range $[-x, x]$ which can be represented as differences $ U_n - G_m$, when $x$ goes to infinity. In particular, the density of such integers is $0$.

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