| HAL : hal-00663474, version 1 |
| arXiv : 1201.0678 |
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| Finite Morphisms to Projective Space and Capacity Theory |
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| Ted Chinburg 1Laurent Moret-Bailly 2 |
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| (03/01/2012) |
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| We study conditions on a commutative ring R which are equivalent to the following requirement; whenever X is a projective scheme over S = Spec(R) of fiber dimension \leq d for some integer d \geq 0, there is a finite morphism from X to P^d_S over S such that the pullbacks of coordinate hyperplanes give prescribed subschemes of X provided these subschemes satisfy certain natural conditions. We use our results to define a new kind of capacity for subsets of the archimedean points of projective flat schemes X over the ring of integers of a number field. This capacity can be used to generalize the converse part of the Fekete-Szeg\H{o} Theorem. |
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| 1 : | Department of Mathematics, University of Pennsylvania |
| University of Pennsylvania | |
| 2 : | Institut de Recherche Mathématique de Rennes (IRMAR) |
| CNRS : UMR6625 – Université de Rennes 1 – École normale supérieure de Cachan - ENS Cachan – Institut National des Sciences Appliquées (INSA) : - RENNES – Université de Rennes II - Haute Bretagne | |
| 3 : | Department of Mathematics, Michigan State University |
| Michigan State University | |
| 4 : | Mathematical Institute [Oxford] (MI) |
| University of Oxford | |
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| Géométrie algébrique |
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| Domaine | : | Mathématiques/Géométrie algébrique Mathématiques/Théorie des nombres |
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| finite morphism – Picard group – varieties over global fields – capacity theory |
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| Lien vers le texte intégral : |
| hal-00663474, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00663474 | |
| oai:hal.archives-ouvertes.fr:hal-00663474 | |
| Contributeur : Laurent Moret-Bailly | |
| Soumis le : Vendredi 27 Janvier 2012, 11:30:40 | |
| Dernière modification le : Lundi 30 Janvier 2012, 16:34:28 | |