Fibrations between smooth Schubert varieties
refreshments at 3:45pm
We construct maps between smooth Schubert varieties
which are fiber bundles whose fibers are again
smooth Schubert varieties. In particular, these maps give
an alternative proof of a smoothness criterion by
Lakshmibai and Sandhya, and also show that the Poincaré
polynomials of such varieties are always
products of q-binomial coefficients. This is a joint
work with Vic Reiner.
Speaker's Contact Info: vesko(at-sign)math.cornell.edu
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