Computing the torsion of the p-ramified module of a number field

نویسندگان

  • Frédéric Pitoun
  • Firmin Varescon
چکیده

We fix a prime number p and a number field K, and denote by M the maximal abelian p-extension of K unramified outside p. Our aim is to study the Zp-module X = Gal(M/K) and to give a method to effectively compute its structure as a Zp-module. We also give numerical results, for real quadratic fields, cubic fields and quintic fields, together with their interpretations via Cohen-Lenstra heuristics.

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عنوان ژورنال:
  • Math. Comput.

دوره 84  شماره 

صفحات  -

تاریخ انتشار 2015