Genus fields of Kummer ℓn-cyclic extensions

Autor: Gabriel Villa-Salvador, Carlos Daniel Reyes-Morales
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Mathematics. 32:2150062
ISSN: 1793-6519
0129-167X
Popis: We give a construction of the genus field for Kummer [Formula: see text]-cyclic extensions of rational congruence function fields, where [Formula: see text] 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 [Formula: see text]-cyclic extension. Finally, we study the extension [Formula: see text], for [Formula: see text], [Formula: see text] abelian extensions of [Formula: see text].
Databáze: OpenAIRE