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Genus fields of Kummer ℓn-cyclic extensions
International Journal of Mathematics ( IF 0.6 ) Pub Date : 2021-07-01 , DOI: 10.1142/s0129167x21500622 Carlos Daniel Reyes-Morales 1 , Gabriel Villa-Salvador 1
International Journal of Mathematics ( IF 0.6 ) Pub Date : 2021-07-01 , DOI: 10.1142/s0129167x21500622 Carlos Daniel Reyes-Morales 1 , Gabriel Villa-Salvador 1
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We give a construction of the genus field for Kummer ℓ n -cyclic extensions of rational congruence function fields, where ℓ is a prime number. First, we compute the genus field of a field contained in a cyclotomic function field, and then for the general case. This generalizes the result obtained by Peng for a Kummer ℓ -cyclic extension. Finally, we study the extension ( K 1 K 2 ) 𝔤 𝔢 / ( K 1 ) 𝔤 𝔢 ( K 2 ) 𝔤 𝔢 , for K 1 , K 2 abelian extensions of k .
中文翻译:
Kummer ℓn-循环扩展的属域
我们给出了 Kummer 的属域的构造ℓ n -有理同余函数域的循环扩展,其中ℓ 是一个素数。首先,我们计算分圆函数域中包含的域的属域,然后计算一般情况。这概括了 Peng 为 Kummer 获得的结果ℓ -循环扩展。最后,我们研究扩展( ķ 1 ķ 2 ) 𝔤 𝔢 / ( ķ 1 ) 𝔤 𝔢 ( ķ 2 ) 𝔤 𝔢 , 为了ķ 1 ,ķ 2 的阿贝尔扩展ķ .
更新日期:2021-07-01
中文翻译:
Kummer ℓn-循环扩展的属域
我们给出了 Kummer 的属域的构造