GREITHER, Cornelius, Radan KUČERA and Said HACHAMI. Racines d'unités cyclotomiques et divisibilité du nombre de classes d'un corps abélien réel (Roots of cyclotomic units and divisibility of the class number of real abelian fields). Acta Arithmetica. Warszawa: Instytut Matematyczny PAN, 2001, vol. 96, No 3, p. 247-259. ISSN 0065-1036.
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Basic information
Original name Racines d'unités cyclotomiques et divisibilité du nombre de classes d'un corps abélien réel
Name (in English) Roots of cyclotomic units and divisibility of the class number of real abelian fields
Authors GREITHER, Cornelius, Radan KUČERA (203 Czech Republic, guarantor) and Said HACHAMI.
Edition Acta Arithmetica, Warszawa, Instytut Matematyczny PAN, 2001, 0065-1036.
Other information
Original language French
Type of outcome Article in a journal
Field of Study 10101 Pure mathematics
Country of publisher Poland
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 0.458
RIV identification code RIV/00216224:14310/01:00003125
Organization unit Faculty of Science
Keywords in English cyclotomic units
Tags cyclotomic units
Changed by Changed by: prof. RNDr. Radan Kučera, DSc., učo 59. Changed: 27/6/2007 09:45.
Abstract
Le nombre de classes $h_K$ d'un corps abélien reél $K$ a la réputation d'etre difficile a calculer, et pour cause. Dans ce travail, $K$ est un corps de gendres de type $(p,...,p)$ ($l$ fois $p$, $p$ est un premier impair). Notre résultat principal affirme que $h_K$ est divisible par $p^{2^l-l^2+l-2}$.
Abstract (in English)
The class number $h_K$ of a real abelian field $K$ is known to be difficult to compute. In the paper, $K$ is a genus field of the type $(p,...,p)$ ($l$ times $p$, $p$ is an odd prime). Our main result states that $h_K$ is divisible by $p^{2^l-l^2+l-2}$.
Links
MSM 143100009, plan (intention)Name: Matematické struktury algebry a geometrie
Investor: Ministry of Education, Youth and Sports of the CR, Mathematical structures of algebra and geometry
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