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arXiv 1503.04642math.NT
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丢番汀稳定性

Diophantine stability

Barry Mazur, Karl Rubin, Michael Larsen

摘要:

若$V$是数域$K$上的不可约代数簇,且$L$是包含$K$的域,则称$V$对$L/K$是丢番图稳定的,若$V(L) = V(K)$ .我们证明了如果$V$是一个简单的阿贝尔簇,或曲线的亏格至少有一个,然后在温和的假设下,有一个集$S$的有理素数与正密度,使每个$\ell \in S$和每个$n \ge 1$,有无限多个循环扩张$L/K$的程度$\ell^n$,其中$V$是Diophantine稳定的。我们使用这个结果来研究由$V(\bar{K})$中的点生成的$K$的有限扩张的集合。

英文摘要:

If $V$ is an irreducible algebraic variety over a number field $K$, and $L$ is a field containing $K$, we say that $V$ is diophantine-stable for $L/K$ if $V(L) = V(K)$. We prove that if $V$ is either a simple abelian variety, or a curve of genus at least one, then under mild hypotheses there is a set $S$ of rational primes with positive density such that for every $\ell \in S$ and every $n \ge 1$, there are infinitely many cyclic extensions $L/K$ of degree $\ell^n$ for which $V$ is diophantine-stable. We use this result to study the collection of finite extensions of $K$ generated by points in $V(\bar{K})$.

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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