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arXiv 0903.2741math.NT
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关于丢番图逼近中的一个混合问题

On a mixed problem in Diophantine approximation

Yann Bugeaud, Bernard De Mathan

摘要:

令$d$为正整数。设$p$为素数。令$α$是次数为$d+1$的实代数数。证明了存在正常数$c$和无穷多个次数为$d$的代数数$ξ$使得$|α- ξ| \cdot \min\{|\Norm(ξ)|_p,1\} < c H(ξ)^{-d-1} (\log 3 H(ξ))^{-1/d}$ .这里,$H(ξ)$和$\Norm(ξ)$分别表示$ξ$的初始高度及其范数。这推广了de Mathan和Teulié处理$d=1$情形的一个较早的结果。

英文摘要:

Let $d$ be a positive integer. Let $p$ be a prime number. Let $α$ be a real algebraic number of degree $d+1$. We establish that there exist a positive constant $c$ and infinitely many algebraic numbers $ξ$ of degree $d$ such that $|α- ξ| \cdot \min\{|\Norm(ξ)|_p,1\} < c H(ξ)^{-d-1} (\log 3 H(ξ))^{-1/d}$. Here, $H(ξ)$ and $\Norm(ξ)$ denote the na{\"ı}ve height of $ξ$ and its norm, respectively. This extends an earlier result of de Mathan and Teulié that deals with the case $d=1$.

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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