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arXiv 1209.2399math.NT
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关于周期点的Hasse原理

A Hasse Principle for Periodic Points

Adam Towsley

摘要:

设$F$是一个全局域,$\vp \in \Fx$是一个度至少为2的有理映射,$\a \in F$ .如果对于某些$n \geq 1$,$\vpn (\a) = \a$是周期的,我们说$\a $是周期的。哈塞原理是这样一种想法,或者说希望,即一种在地方发生的现象也应该在全球发生。众所周知,这个原则在某些情况下是正确的,而在另一些情况下是错误的。我们表明,哈塞原则适用于周期点,并进一步表明,它是足够的知道,$\a$是周期性的剩余领域的每一个素数在一组自然密度1知道,$\a$是周期性的$F$。

英文摘要:

Let $F$ be a global field, let $\vp \in \Fx$ be a rational map of degree at least 2, and let $\a \in F$. We say that $\a $ is periodic if $\vpn (\a) = \a$ for some $n \geq 1$. A Hasse principle is the idea, or hope, that a phenomenon which happens everywhere locally should happen globally as well. The principle is well known to be true in some situations and false in others. We show that a Hasse principle holds for periodic points, and further show that it is sufficient to know that $\a$ is periodic on residue fields for every prime in a set of natural density density 1 to know that $\a$ is periodic in $F$.

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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