English

On some imaginary triquadratic number fields $k$ with $\mathrm{Cl}_2(k)\simeq(2, 4)$ or $(2, 2, 2)$

Number Theory 2021-05-20 v5

Abstract

Let dd be a square free integer and Ld:=Q(ζ8,d)L_d:=\mathbb{Q}(\zeta_{8},\sqrt{d}). In the present work we determine all the fields LdL_d such that the 22-class group, Cl2(Ld)\mathrm{Cl}_2(L_d), of LdL_d is of type (2,4)(2,4) or (2,2,2)(2,2,2).

Keywords

Cite

@article{arxiv.2002.03094,
  title  = {On some imaginary triquadratic number fields $k$ with $\mathrm{Cl}_2(k)\simeq(2, 4)$ or $(2, 2, 2)$},
  author = {Abdelmalek Azizi and Mohamed Mahmoud Chems-Eddin and Abdelkader Zekhnini},
  journal= {arXiv preprint arXiv:2002.03094},
  year   = {2021}
}

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14 pages