arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0811.1300math.NT
收藏

关于不可约三项式的判别式生成的二次域

On Quadratic Fields Generated by Discriminants of Irreducible Trinomials

I. E. Shparlinski

摘要:

A. Mukhopadhyay,M. R. Murty和K。Srinivas(http://arxiv.org/abs/0808.0418)最近研究了三项式$f_{n,a,b}(t) = t^n + at + b$的判别式$Δ_n(a,b)$的各种算术性质,其中$n \ge 5$是固定整数。特别是,它表明,根据$abc$ -猜想,对于每个$n \equiv 1 \pmod 4$,二次域$\Q(\sqrt{Δ_n(a,b)})$是成对不同的正比例的这样的判别式与整数$a$和$b$,$f_{n,a,b}$是不可约的$\Q$和$|Δ_n(a,b)|\le X$,作为$X\to \infty$。我们使用平方筛和字符和的界限,以获得一个较弱的,但无条件的版本这个结果。

英文摘要:

A. Mukhopadhyay, M. R. Murty and K. Srinivas (http://arxiv.org/abs/0808.0418) have recently studied various arithmetic properties of the discriminant $Δ_n(a,b)$ of the trinomial $f_{n,a,b}(t) = t^n + at + b$, where $n \ge 5$ is a fixed integer. In particular, it is shown that, under the $abc$-conjecture, for every $n \equiv 1 \pmod 4$, the quadratic fields $\Q(\sqrt{Δ_n(a,b)})$ are pairwise distinct for a positive proportion of such discriminants with integers $a$ and $b$ such that $f_{n,a,b}$ is irreducible over $\Q$ and $|Δ_n(a,b)|\le X$, as $X\to \infty$. We use the square-sieve and bounds of character sums to obtain a weaker but unconditional version of this result.

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。

↑