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arXiv 1001.0348math.NTmath.CO
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关于调和数与Lucas序列

On harmonic numbers and Lucas sequences

Zhi-Wei Sun

摘要:

调和数$H_k=\sum_{0<j\le k}1/j (k=0,1,2,...)$在许多数学领域中自然出现。本文研究了调和数与Lucas序列的同余关系。我们的三个定理之一如下:设u_0=0,u_1=1,且u_{n+1} =u_n-4 u_{n-1},其中n= 1,2,3,.然后,对于任何素数p>5,我们有$$\sum_{k=0}^{p-1}u_{k+δ}H_k/2^k=0 (mod p),$$,其中如果p= 1,2,4,8(mod 15),则为$δ=0$,否则为$δ=1$。

英文摘要:

Harmonic numbers $H_k=\sum_{0<j\le k}1/j (k=0,1,2,...)$ arise naturally in many fields of mathematics. In this paper we initiate the study of congruences involving both harmonic numbers and Lucas sequences. One of our three theorems is as follows: Let u_0=0, u_1=1, and u_{n+1}=u_n-4u_{n-1} for n=1,2,3,.... Then, for any prime p>5 we have $$\sum_{k=0}^{p-1}u_{k+δ}H_k/2^k=0 (mod p),$$ where $δ=0$ if p=1,2,4,8 (mod 15), and $δ=1$ otherwise.

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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