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Schubert varieties and the fusion products. The general case

E. Feigin
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Abstract

This paper generalizes the results of the paper \cite{mi3} to the case of the general $\mathfrak{sl}_2$ Schubert varieties. We study the homomorphisms between different Schubert varieties, describe their geometry and the group of the line bundles. We also derive some consequences, concerning the infinite-dimensional generalized affine grassmanians.

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E. Feigin. 2004-02-13. Schubert varieties and the fusion products. The general case. https://arxiv.org/abs/math/0311278

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