| HAL : hal-00696247, version 1 |
| arXiv : 1205.2676 |
| Fiche détaillée | Récupérer au format |
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| On the logarithmic connections over curves |
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| Indranil Biswas 1Viktoria Heu 2 |
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| (11/05/2012) |
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| We study two different actions on the moduli spaces of logarithmic connections over smooth complex projective curves. Firstly, we establish a dictionary between logarithmic orbifold connections and parabolic logarithmic connections over the quotient curve. Secondly, we prove that fixed points on the moduli space of connections under the action of finite order line bundles are exactly the push-forward of logarithmic connections on a certain unramified Galois cover of the base curve. In the coprime case, this action of finite order line bundles on the moduli space is cohomologically trivial. |
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| 1 : | Tata Institute of Fundamental Research (TIFR) |
| TIFR | |
| 2 : | Institut de Recherche Mathématique Avancée (IRMA) |
| CNRS : UMR7501 – Université de Strasbourg | |
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| Algebraic geometry |
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| Domaine | : | Mathématiques/Géométrie algébrique |
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| Logarithmic connection – residue – moduli space – Higgs bundle |
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| hal-00696247, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00696247 | |
| oai:hal.archives-ouvertes.fr:hal-00696247 | |
| Contributeur : Viktoria Heu | |
| Soumis le : Vendredi 11 Mai 2012, 12:28:11 | |
| Dernière modification le : Vendredi 11 Mai 2012, 21:40:58 | |