English

Closures of K-orbits in the flag variety for SU*(2n)

Representation Theory 2013-04-25 v4 Algebraic Geometry

Abstract

We characterize the Sp_{2n} orbits in the flag variety for SL_{2n} with rationally smooth closure via a pattern avoidance criterion, also showing that the singular and rationally singular loci of such orbit closures coincide.

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Cite

@article{arxiv.0907.1049,
  title  = {Closures of K-orbits in the flag variety for SU*(2n)},
  author = {William M. McGovern},
  journal= {arXiv preprint arXiv:0907.1049},
  year   = {2013}
}

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5 pages