Singularities of Affine Schubert Varieties

Symmetry, Integrability and Geometry: Methods and Applications

关键词: Schubert varieties;    affine Grassmannian;    loop Grassmannian;   

DOI  :  

来源: DOAJ

【 摘 要 】

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 Schubert variety, we give partial results on the singular locus.

【 授权许可】

Unknown