Geodesic
Abstract $\ell$-Adic 1-Motives and Tate's Canonical Class for Number Fields
Documenta mathematica, Tome 23 (2018), pp. 839-870.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

In an earlier paper we constructed a new class of Iwasawa modules as $\ell$-adic realizations of waht we called abstract $\ell$-adic 1-motives in the number field setting. We proved in loc. cit. that the new Iwasawa modules satisfy an equivariant main conjecture. In this paper we link the new modules to the $\ell$-adified Tate canonical class, defined by Tate in 1960 [Ta1] and give an explicit construction of (the minus part og) $\ell$-adic Tate sequences for any Galois CM extension $K/k$ of an arbitrary totally real number field $k$. These explicit constructions are significant and useful in their own right but also due to their applications (via results in [GP2]) to a proof of the minus part of the far reaching Equivariant Tamagawa Number Conjecture for the Artin motive associated to the Galois extension $K/k$.
Classification : 11R23, 11R34, 11R37, 11R42
Keywords: $\ell$-adic 1-motives, $\ell$-adic $L$-function, Tate class, equivariant main conjecture 
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     title = {Abstract $\ell${-Adic} {1-Motives} and {Tate's} {Canonical} {Class} for {Number} {Fields}},
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Greither, Cornelius; Popescu, Cristian D. Abstract $\ell$-Adic 1-Motives and Tate's Canonical Class for Number Fields. Documenta mathematica, Tome 23 (2018), pp. 839-870. http://geodesic.mathdoc.fr/item/DOCMA_2018__23__a36/