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We relate the geometry of Schubert varieties in twisted affine Grassmannian and the nilpotent varieties in symmetric spaces. This extends some results of Achar–Henderson in the twisted setting. We also get some applications to the geometry of the order 2 nilpotent varieties in certain classical symmetric spaces.
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Which Schubert Varieties are Hessenberg Varieties?
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1007/s00031-023-09825-0
