arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.00804math.NT
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殆素数与Banks-Martin猜想

Almost primes and the Banks-Martin conjecture

Jared Duker Lichtman

摘要:

自鄂尔多斯以来,人们已经知道,当$k$变化时,$1/(n\log n)$对具有恰好$k$素因子的数$n$(具有重复)的和是有界的。我们证明了当$k$趋于无穷大时,这个和趋于1。Banks和Martin已经证明了这些和在$k$中单调减少,并且在早期的论文中已经证明了对于$k$直到3都是如此。然而,我们发现,该猜想是假的,在一般情况下,事实上,全局极小值发生在$k=6$。

英文摘要:

It has been known since Erdos that the sum of $1/(n\log n)$ over numbers $n$ with exactly $k$ prime factors (with repetition) is bounded as $k$ varies. We prove that as $k$ tends to infinity, this sum tends to 1. Banks and Martin have conjectured that these sums decrease monotonically in $k$, and in earlier papers this has been shown to hold for $k$ up to 3. However, we show that the conjecture is false in general, and in fact a global minimum occurs at $k=6$.

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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