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math.AG2001
Alcoves et p-rang des variétés abéliennes
B. C. Ngô, A. Genestier
We study the relation between the -rank of abelian varieties in characteristic and the Kottwitz-Rapoport's stratification of the special fiber modulo of the moduli space…
math.AG2001
Nearby cycles for local models of some Shimura varieties
T. Haines, B. C. Ngo
Kottwitz conjectured a formula for the (semi-simple) trace of Frobenius on the nearby cycles for the local model of a Shimura variety with Iwahori-type level structure. In this pap…