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Type de Scindage Généralisé Pour les Fibrés Stables

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Vector Bundles and Differential Equations

Part of the book series: Progress in Mathematics ((PM,volume 7))

Résumé

Dans un récent travail, SPINDLER [15] a démontré le résultat suivant: Si E est un fibré semi-stable sur ℙn(ℂ), alors sa restriction à une droite générale est de la forme E|L ≅ OL(a1) ⊕...⊕ 0L(ar), avec ai ≥ ai+l ≥ ai−1 (La Suite a1 ≥ a2 ≥...≥ ar s’appelle type de scindage générique de E). La méthode de démonstration raffine une idée de VAN DE VEN [17], qui traitait le cas des fibrés uniformes de rang 2, idée déjà reprise par GRAUERT-MÜLICH [6], BARTH [2], ELENCWAJG [3]. Elle consiste à montrer que si E est un fibré de type de scindage générique al ≥ a2 ≥ ... ≥ ar avec ai − a.i+1 ≥ 2 pour au moins un i, il existe un sous-faisceau F ⊂ E de type de scindage générique a1 ≥ ...≥ ai.

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© 1980 Birkhäuser, Boston

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Forster, O., Hirschowitz, A., Schneider, M. (1980). Type de Scindage Généralisé Pour les Fibrés Stables. In: Hirschowitz, A. (eds) Vector Bundles and Differential Equations. Progress in Mathematics, vol 7. Birkhäuser Boston. https://doi.org/10.1007/978-1-4684-9415-0_4

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  • DOI: https://doi.org/10.1007/978-1-4684-9415-0_4

  • Publisher Name: Birkhäuser Boston

  • Print ISBN: 978-0-8176-3022-5

  • Online ISBN: 978-1-4684-9415-0

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