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math.AG2005
Bounds on weights of nearby cycles and Wakimoto sheaves on affine flag manifolds
Ulrich Goertz, Thomas J. Haines
We study certain nearby cycles sheaves on an affine flag manifold which arise naturally in the Beilinson-Gaitsgory deformation of the affine flag manifold to the affine Grassmannia…
math.AG2002
Topological flatness of local models in the ramified case
Ulrich Goertz
Local models are schemes defined in terms of linear algebra which can be used to study the local structure of integral models of certain Shimura varieties, with parahoric level str…