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arXiv 2006.07987math.NTmath.AG
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函数域上类群的高$\ell$ -扭秩

High $\ell$-torsion rank for class groups over function fields

Iman Setayesh, Jacob Tsimerman

摘要:

证明了在函数域的设定下,二次域的类群中的$\ell$ -挠率可以任意大.事实上,我们明确地产生了一个家族,其$\ell$秩增长与亏格理论中的增长相匹配,这可能是最好的。为此,我们特别关注Artin-Schreir曲线$y^2=x^q-x$。

英文摘要:

We prove that in the function field setting, $\ell$-torsion in the class groups of quadratic fields can be arbitrarily large. In fact, we explicitly produce a family whose $\ell$-rank growth matches the growth in the setting of genus theory, which might be best possible. We do this by specifically focusing on the Artin-Schreir curves $y^2=x^q-x$.

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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