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               <dc:title>Semipurity of tempered Deligne cohomology</dc:title>
               <dc:creator>Burgos Gil, José Ignacio</dc:creator>
               <dc:creator>Centre de Recerca Matemàtica</dc:creator>
               <dc:subject>Homologia, Teoria d'</dc:subject>
               <dc:subject>Grups aritmètics</dc:subject>
               <dc:description>In this paper we define the formal and tempered Deligne cohomology groups, that are obtained by applying the Deligne complex functor to the complexes of formal differential forms and tempered currents respectively. We then prove the existence of a duality between them, a vanishing theorem for the former and a semipurity property for the latter. The motivation of this results comes from the study of covariant arithmetic Chow groups. The semi-purity property of tempered Deligne cohomology implies, in particular, that several definitions of covariant arithmetic Chow groups agree for projective arithmetic varieties.</dc:description>
               <dc:date>2007</dc:date>
               <dc:type>Article</dc:type>
               <dc:type>Prepublicació</dc:type>
               <dc:relation>Centre de Recerca Matemàtica. Prepublicacions ;</dc:relation>
               <dc:rights>open access</dc:rights>
               <dc:rights>Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.</dc:rights>
               <dc:rights>https://creativecommons.org/licenses/by-nc-nd/2.5/</dc:rights>
               <dc:publisher>Centre de Recerca Matemàtica</dc:publisher>
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