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math.AG2023
Laumon parahoric local models via quiver Grassmannians
Evgeny Feigin, Martina Lanini, Alexander Pütz
Local models of Shimura varieties in type A can be realized inside products of Grassmannians via certain linear algebraic conditions. Laumon suggested a generalization which can be…
math.RT2023★ 3 cited
Desingularizations of Quiver Grassmannians for the Equioriented Cycle Quiver
Alexander Pütz, Markus Reineke
We construct torus equivariant desingularizations of quiver Grassmannians for arbitrary nilpotent representations of an equioriented cycle quiver. We apply this to the computation…
math.RT2023★ 1 cited
Generalized juggling patterns, quiver Grassmannians and affine flag varieties
Evgeny Feigin, Martina Lanini, Alexander Pütz
The goal of this paper is to clarify the connection between certain structures from the theory of totally nonnegative Grassmannians, quiver Grassmannians for cyclic quivers and the…