1990
DOI: 10.1090/s0025-5718-1990-1011438-8
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The computation of sextic fields with a quadratic subfield

Abstract: We describe four tables (one for each signature) of sixth-degree fields K containing a quadratic subfield k. The tables contain various information, including, for each possible discriminant dK of K , a cubic polynomial which defines K/k , the discriminant of the quartic field k such that k/k is the quadratic extension corresponding to K/k , and the Galois group of the Galois closure N/Q of K/Q .

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Cited by 12 publications
(14 citation statements)
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“…Ce paragraphe ne concerne que l'article [11], connu sous le nom musical de BéMO , dans lequel, faute de pouvoir manipuler des bases relatives, nous avons programmé des calculs p-adiques pour classer jusqu'à une borne donnée de leurs discriminants absolus les corps sextiques qui sont une extension cubique d'un corps quadratique. [12] [14], [17] et [15], auxquels ont peut aussi rattacher le survol [18].…”
Section: Théorie Algébrique Et Algorithmique Des Nombresunclassified
“…Ce paragraphe ne concerne que l'article [11], connu sous le nom musical de BéMO , dans lequel, faute de pouvoir manipuler des bases relatives, nous avons programmé des calculs p-adiques pour classer jusqu'à une borne donnée de leurs discriminants absolus les corps sextiques qui sont une extension cubique d'un corps quadratique. [12] [14], [17] et [15], auxquels ont peut aussi rattacher le survol [18].…”
Section: Théorie Algébrique Et Algorithmique Des Nombresunclassified
“…Now, we have tables of sextic fields containing a cubic field, with their relative discriminants. Those fields with a quadratic subfield are in the tables mentioned earlier (see [3]). So, we have to detect whether K contains a quadratic subfield k ; if the answer is positive, we eliminate those sextic fields from the tables.…”
Section: Quadratic Subfields and Isomorphismsmentioning
confidence: 99%
“…In a previous paper [3] with A.-M. Berge and J. Martinet, we described relative methods for finding sextic fields with a quadratic subfield up to a given bound on the discriminant. These methods were inspired by general considerations on a geometric approach to this subject explained by J.…”
Section: Introductionmentioning
confidence: 99%
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