The denominators of harmonic numbers

The denominators of harmonic numbers
复制标题

DOI:
--
复制
发表时间:
2016-07
期刊:
arXiv: Number Theory
影响因子:
--
通讯作者:
P. Shiu
P. Shiu
中科院分区:
其他
文献类型:
--
作者:
P. Shiu

文献摘要

被引文献

相似文献

调和数$1+\frac12+\frac13+\cdots+\frac1n$的导数d_n$不随n$单调增加。证明了$d_n=D_n={\rmLCM}(1,2,\ldots,n)$无穷频繁.对于奇素数p,集合n:pd_n| D_n $具有调和密度,并且对于$2<p_1<p_2<\cdots<p_k$,存在$n$使得$p_1p_2\cdots p_kd_n| D_n$。
The denominators $d_n$ of the harmonic number $1+\frac12+\frac13+\cdots+\frac1n$ do not increase monotonically with~$n$. It is conjectured that $d_n=D_n={\rm LCM}(1,2,\ldots,n)$ infinitely often. For an odd prime $p$, the set $\{n:pd_n|D_n\}$ has a harmonic density and, for $2<p_1<p_2<\cdots<p_k$, there exists $n$ such that $p_1p_2\cdots p_kd_n|D_n$.