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Tenth degree number fields with quintic fields having one real place
Authors:Schehrazad Selmane
Institution:University of Sciences and Technology (U.S.T.H.B), Institut of Mathematics, B.P. 32 El Alia, Bab-Ezzouar, 16111, Algiers, Algeria
Abstract:

In this paper, we enumerate all number fields of degree $10$ of discriminant smaller than $10^{11}$ in absolute value containing a quintic field having one real place. For each one of the $21509$ (resp. $18167)$ found fields of signature $(0,5)$ (resp. $(2,4))$ the field discriminant, the quintic field discriminant, a polynomial defining the relative quadratic extension, the corresponding relative discriminant, the corresponding polynomial over $\mathbb{Q}$, and the Galois group of the Galois closure are given.

In a supplementary section, we give the first coincidence of discriminant of $19$ (resp. $20)$ nonisomorphic fields of signature $(0,5)$ (resp. $ (2,4))$.

Keywords:Quintic fields  relative quadratic extensions  discriminant
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