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arXiv math/0504581math.NT
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具有指数为2的理想类群的二次函数域

Quadratic Function Fields with Exponent Two Ideal Class Group

Victor Bautista-Ancona, Javier Diaz-Vargas

摘要:

Madden证明了k(x)的二次扩张只有1000个,k是一个有限域,其中理想类群的指数为2,且k(x)的无穷位置是分歧的.我们给这样的字段,使我们能够找到一个完整的列表,所有这样的域扩张为将来参考的表征。在这样做的时候,我们纠正了一些错误,在早期出版的文献。

英文摘要:

It has been shown by Madden that there are only finitely many quadratic extensions of k(x), k a finite field, in which the ideal class group has exponent two and the infinity place of k(x) ramifies. We give a characterization of such fields that allow us to find a full list of all such field extensions for future reference. In doing so we correct some errors in earlier published literature.

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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