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Asymptotic properties of Dedekind zeta functions in families of number fields

Alexey Zykin (2010)

Journal de Théorie des Nombres de Bordeaux

The main goal of this paper is to prove a formula that expresses the limit behaviour of Dedekind zeta functions for s > 1 / 2 in families of number fields, assuming that the Generalized Riemann Hypothesis holds. This result can be viewed as a generalization of the Brauer–Siegel theorem. As an application we obtain a limit formula for Euler–Kronecker constants in families of number fields.

Certain L-functions at s = 1/2

Shin-ichiro Mizumoto (1999)

Acta Arithmetica

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...

Class groups of abelian fields, and the main conjecture

Cornelius Greither (1992)

Annales de l'institut Fourier

This first part of this paper gives a proof of the main conjecture of Iwasawa theory for abelian base fields, including the case p = 2 , 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 χ -parts of p -class groups of abelian number fields: first for relative class groups of real fields (again including the case p = 2 ). As a consequence, a generalization of the Gras conjecture is stated...

Classes d'idéaux des corps abéliens et nombres de Bernoulli généralisés

Georges Gras (1977)

Annales de l'institut Fourier

Pour l premier impair, l’étude du l -groupe des classes d’idéaux des extensions abéliennes de degré premier à l se ramène à celle de groupes notés H ϕ , où ϕ parcourt un certain ensemble de caractères l -adiques irréductibles.Il est démontré, dans cet article, une généralisation des congruences de Leopoldt et Fresnel entre les fonctions L l l -adiques et les nombres de Bernoulli généralisés. Cette généralisation conduit à une amélioration de la connaissance des H ϕ  : en effet, la juxtaposition de ce résultat...

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