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arXiv 2005.10920math.NT
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$\mathbb{P}^1$的Galois覆盖和具有大类群的数域

Galois covers of $\mathbb{P}^1$ and number fields with large class groups

Jean Gillibert, Pierre Gillibert

摘要:

对于$PGL_2(\mathbb{Q})$的每个有限子群$G$,以及每个与$6$互质的整数$n$,我们构造了$\mathbb{Q}$的显式无穷多个Galois扩张,其群$G$的理想类群的$n$秩至少为$\#G-1$ .这为数字字段的类组提供了新的$n$秩记录。

英文摘要:

For each finite subgroup $G$ of $PGL_2(\mathbb{Q})$, and for each integer $n$ coprime to $6$, we construct explicitly infinitely many Galois extensions of $\mathbb{Q}$ with group $G$ and whose ideal class group has $n$-rank at least $\#G-1$. This gives new $n$-rank records for class groups of number fields.

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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