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arXiv 1902.09231math.NT
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切比雪夫θ函数的一个渐近公式

An Asymptotic Formula for the Chebyshev Theta Function

Aditya Ghosh

摘要:

设$\{p_n\}_{n\ge 1}$是素数序列,而$\vartheta(x) = \sum_{p \leq x} \log p$是切比雪夫$\vartheta$函数,其中$p$在不超过$x$的素数上运行。本文通过与$\log p_{n+1}$的比较,导出了$\vartheta(p_n)/n$的上、下界,并由此推论出$\vartheta(p_n)/n=\log p_{n+1}\left(1-\frac{1}{\log n}+\frac{\log\log n}{\log^2 n}\left(1+o(1)\right)\right).$

英文摘要:

Let $\{p_n\}_{n\ge 1}$ be the sequence of primes and $\vartheta(x) = \sum_{p \leq x} \log p$, where $p$ runs over the primes not exceeding $x$, be the Chebyshev $\vartheta$-function. In this note we derive lower and upper bounds for $\vartheta(p_n)/n$ by comparing it with $\log p_{n+1}$ and deduce that $\vartheta(p_n)/n=\log p_{n+1}\left(1-\frac{1}{\log n}+\frac{\log\log n}{\log^2 n}\left(1+o(1)\right)\right).$

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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