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Vendredi 23 Septembre
| Heure: |
10:30 - 12:00 |
| Lieu: |
Salle B407, bâtiment B, LAGA, Institut Galilée, Université Paris 13 |
| Résumé: |
Géométrie Arithmétique et Motivique - The supersingular locus of the Shimura variety of GU(2,n-2) - |
| Description: |
Naoki Imai
The irreducible components of the supersingular locus of a reduction at 
an inert prime of the Shimura variety attached to GU(1, n-1) was studied 
by Vollaard-Wedhorn. In the case of GU(2, n-2), it was studied by Howard
-Pappas if n=4, but the situation is completely different if n >4. We 
discuss this question for n>4 in terms of affine Deligne-Lusztig 
varieties. This is a joint work with Maria Fox. |
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