Singularities of Affine Schubert Varieties

Singularities of Affine Schubert Varieties

This paper studies the singularities of affine Schubert varieties in the affine Grassmannian (of type A_l^{(1)}). For two classes of affine Schubert varieties, we determine the singular loci; and for one class, we also determine explicitly the tangent spaces at singular points. For a general affine...

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Bibliographic Details
Main Authors: Jochen Kuttler, Venkatramani Lakshmibai
Format: Article
Language:English
Published: National Academy of Science of Ukraine 2009-04-01
Series:Symmetry, Integrability and Geometry: Methods and Applications
Subjects:
Schubert varieties
affine Grassmannian
loop Grassmannian
Online Access:http://dx.doi.org/10.3842/SIGMA.2009.048

Internet

http://dx.doi.org/10.3842/SIGMA.2009.048

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