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Transactions of the American Mathematical Society
Transactions of the American Mathematical Society
ISSN 1088-6850(online) ISSN 0002-9947(print)



On the Weil-étale cohomology of number fields

Author: Baptiste Morin
Journal: Trans. Amer. Math. Soc. 363 (2011), 4877-4927
MSC (2000): Primary 14F20; Secondary 14G10
Published electronically: April 14, 2011
MathSciNet review: 2806695
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Abstract: We give a direct description of the category of sheaves on Lichtenbaum's Weil-étale site of a number ring. Then we apply this result to define a spectral sequence relating Weil-étale cohomology to Artin-Verdier étale cohomology. Finally we construct complexes of étale sheaves computing the expected Weil-étale cohomology.

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Additional Information

Baptiste Morin
Affiliation: Department of Mathematics, California Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125

Keywords: Étale cohomology, Weil-étale cohomology, topos, Dedekind zeta function.
Received by editor(s): February 25, 2009
Received by editor(s) in revised form: January 6, 2010
Published electronically: April 14, 2011
Article copyright: © Copyright 2011 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.

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