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Introduction. The vanishing orders of L-functions at the centers of their functional equations are interesting objects to study as one sees, for example, from the Birch-Swinnerton-Dyer conjecture on the Hasse-Weil L-functions associated with elliptic curves over number fields.
In this paper we study the central zeros of the following types of L-functions:
(i) the derivatives of the Mellin transforms of Hecke eigenforms for SL₂(ℤ),
(ii) the Rankin-Selberg...
This first part of this paper gives a proof of the main conjecture of Iwasawa theory for abelian base fields, including the case , by Kolyvagin’s method of Euler systems. On the way, one obtains a general result on local units modulo circular units. This is then used to deduce theorems on the order of -parts of -class groups of abelian number fields: first for relative class groups of real fields (again including the case ). As a consequence, a generalization of the Gras conjecture is stated...
Pour premier impair, l’étude du -groupe des classes d’idéaux des extensions abéliennes de degré premier à se ramène à celle de groupes notés , où parcourt un certain ensemble de caractères -adiques irréductibles.Il est démontré, dans cet article, une généralisation des congruences de Leopoldt et Fresnel entre les fonctions -adiques et les nombres de Bernoulli généralisés. Cette généralisation conduit à une amélioration de la connaissance des : en effet, la juxtaposition de ce résultat...
Nous déterminons tous les corps diédraux à multiplication complexe de nombres de classes relatif un, puis ceux de nombre de classes un : il y a 32 tels corps non-abéliens principaux. C’est le premier exemple, dans ce cadre assez général, de résolution du problème de nombre de classes un pour les corps galoisiens à multiplication complexe avec un type de groupe de Galois non-abélien fixé.
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