Proves the fiber product formula holds for meta-unitary Shimura varieties, enabling local-global compatibility and a generic cohomology vanishing theorem.
9.2 Global Geometry and the Igusa Stack To apply the local theory to the global setting, one utilizes the geometry of the special fiber of a meta-unitary Shimura variety
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Igusa Stack for some exceptional Shimura Varieties
Proves the fiber product formula holds for meta-unitary Shimura varieties, enabling local-global compatibility and a generic cohomology vanishing theorem.