English

On the capitulation problem of some pure metacyclic fields of degree 20 II

Number Theory 2021-09-14 v1

Abstract

Let nn be a 5th5^{th} power-free naturel number and k0=Q(ζ5)k_0\,=\,\mathbb{Q}(\zeta_5) be the cyclotomic field generated by a primitive 5th5^{th} root of unity ζ5\zeta_5. Then k=Q(n5,ζ5)k\,=\,\mathbb{Q}(\sqrt[5]{n},\zeta_5) is a pure metacyclic field of absolute degree 2020. In the case that kk possesses a 55-class group Ck,5C_{k,5} of type (5,5)(5,5) and all the classes are ambiguous under the action of Gal(k/k0)Gal(k/k_0), the capitulation of 55-ideal classes of kk in its unramified cyclic quintic extensions is determined.

Keywords

Cite

@article{arxiv.2109.05943,
  title  = {On the capitulation problem of some pure metacyclic fields of degree 20 II},
  author = {Fouad Elmouhib and Mohemed Talbi and Abdelmalek Azizi},
  journal= {arXiv preprint arXiv:2109.05943},
  year   = {2021}
}

Comments

12 pages