arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1908.01509math.NT
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3n+1问题:利益分割

The 3n+1 problem: a partition of interest

Maarten J. Wensink

摘要:

与Collatz映射共轭的映射似乎意味着$\N=\{1,2,3,\ldots\}$被划分为平凡循环$\{1\}$和“字符串”,“字符串”是从$\{2+3\0\}$的元素到$\{3+4\0\}$的元素的$\{\N \setminus 1\}$的有序子集($\0=0 \cup \N$)。特别地,这意味着除了平凡循环之外的所有轨迹都经过$\{3+4\0\}$的元素(原始映射的$\{5+8\0\}$)。我给这个猜想的理由。接下来,我注意到3n+1和3n+3是广义$3n+p, p \in \{\ldots,-3,-1,1,3,\ldots\}$中似乎存在这种划分的唯一数。令人怀疑的是,这些也是唯一的成员的猜想(减少到平凡的循环)似乎举行。

英文摘要:

A mapping conjugate to the Collatz mapping seems to imply that $\N=\{1,2,3,\ldots\}$ is partitioned in a trivial loop $\{1\}$ and `strings' that are ordered subsets of $\{\N \setminus 1\}$ that run from an element of $\{2+3\0\}$ to an element of $\{3+4\0\}$ ($\0=0 \cup \N$). In particular, this means that all trajectories except for the trivial loop go through an element of $\{3+4\0\}$ ($\{5+8\0\}$ for the original mapping). I give reasons for this conjecture. Next, I note that the 3n+1 numbers and the 3n+3 numbers are the only numbers from the generalization $3n+p, p \in \{\ldots,-3,-1,1,3,\ldots\}$ for which such a partition seems to exist. Suspiciously, these are also the only members for which the conjecture (reduction to the trivial loop) seems to hold.

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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