Holmstrom Weil-etale motivic cohomology

Weil-etale motivic cohomology

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Weil-etale motivic cohomology

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Weil-etale motivic cohomology

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Weil-etale motivic cohomology

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Weil-etale motivic cohomology

arXiv:1007.1310 A generalization of the Artin-Tate formula for fourfolds from arXiv Front: math.NT by Daichi Kohmoto We give a new formula for the special value at s=2 of the Hasse-Weil zeta function for smooth projective fourfolds under some assumptions (the Tate and Beilinson conjecture, finiteness of some cohomology groups, etc.). Our formula may be considered as a generalization of the Artin-Tate(-Milne) formula for smooth surfaces, and expresses the special zeta value almost exclusively in terms of inner geometric invariants such as higher Chow groups (motivic cohomology groups). Moreover we compare our formula with Geisser’s formula for the same zeta value in terms of Weil-étale motivic cohomology groups, and as a consequence (under additional assumptions) we obtain some presentations of weight two Weil-étale motivic cohomology groups in terms of higher Chow groups and unramified cohomology groups.

nLab page on Weil-etale motivic cohomology

Created on June 10, 2014 at 21:14:54 by Andreas Holmström